diff --git a/include/modules/sni/snh.hpp b/include/modules/sni/snh.hpp
index 585f288..f0a3bc2 100644
--- a/include/modules/sni/snh.hpp
+++ b/include/modules/sni/snh.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <gtkmm.h>
+#include <tuple>
 #include <dbus-status-notifier-watcher.h>
 #include "modules/sni/sni.hpp"
 
@@ -8,8 +9,7 @@ namespace waybar::modules::SNI {
 
 class Host {
   public:
-    Host(Glib::Dispatcher&);
-    ~Host();
+    Host(Glib::Dispatcher*);
     std::vector<Item> items;
   private:
     static void busAcquired(GDBusConnection*, const gchar*, gpointer);
@@ -23,14 +23,14 @@ class Host {
     static void itemUnregistered(SnOrgKdeStatusNotifierWatcher*, const gchar*,
       gpointer);
 
-    void getBusNameAndObjectPath(const gchar*, gchar**, gchar**);
+    std::tuple<std::string, std::string> getBusNameAndObjectPath(const gchar*);
     void addRegisteredItem(const gchar* service);
 
     uint32_t bus_name_id_;
     uint32_t watcher_id_;
     std::string bus_name_;
     std::string object_path_;
-    Glib::Dispatcher& dp_;
+    Glib::Dispatcher* dp_;
     GCancellable* cancellable_ = nullptr;
     SnOrgKdeStatusNotifierWatcher* watcher_ = nullptr;
 };
diff --git a/include/modules/sni/sni.hpp b/include/modules/sni/sni.hpp
index eb57902..9b04404 100644
--- a/include/modules/sni/sni.hpp
+++ b/include/modules/sni/sni.hpp
@@ -7,8 +7,12 @@ namespace waybar::modules::SNI {
 
 class Item {
   public:
-    Item(std::string, std::string, Glib::Dispatcher&);
-    ~Item();
+    Item(std::string, std::string, Glib::Dispatcher*);
+
+    std::string bus_name;
+    std::string object_path;
+    Gtk::EventBox event_box;
+
     int icon_size;
     int effective_icon_size;
     Gtk::Image* image;
@@ -31,9 +35,7 @@ class Item {
 
     void updateImage();
     Glib::RefPtr<Gdk::Pixbuf> getIconByName(std::string name, int size);
-    std::string bus_name_;
-    std::string object_path_;
-    Glib::Dispatcher& dp_;
+    Glib::Dispatcher* dp_;
     GCancellable* cancellable_ = nullptr;
     SnOrgKdeStatusNotifierItem* proxy_ = nullptr;
 };
diff --git a/include/modules/sni/snw.hpp b/include/modules/sni/snw.hpp
index f8965e3..807b0f7 100644
--- a/include/modules/sni/snw.hpp
+++ b/include/modules/sni/snw.hpp
@@ -5,24 +5,25 @@
 
 namespace waybar::modules::SNI {
 
-typedef enum {
-  GF_WATCH_TYPE_HOST,
-  GF_WATCH_TYPE_ITEM
-} GfWatchType;
-
-typedef struct {
-  GfWatchType type;
-  gchar* service;
-  gchar* bus_name;
-  gchar* object_path;
-  guint watch_id;
-} GfWatch;
-
 class Watcher {
   public:
     Watcher();
     ~Watcher();
   private:
+    typedef enum {
+      GF_WATCH_TYPE_HOST,
+      GF_WATCH_TYPE_ITEM
+    } GfWatchType;
+
+    typedef struct {
+      GfWatchType type;
+      Watcher* watcher;
+      gchar* service;
+      gchar* bus_name;
+      gchar* object_path;
+      guint watch_id;
+    } GfWatch;
+
     static void busAcquired(GDBusConnection*, const gchar*, gpointer);
     static gboolean handleRegisterHost(Watcher*,
       GDBusMethodInvocation*, const gchar*);
@@ -30,8 +31,8 @@ class Watcher {
       GDBusMethodInvocation*, const gchar*);
     static GfWatch* gfWatchFind(GSList* list, const gchar* bus_name,
       const gchar* object_path);
-    static GfWatch* gfWatchNew(GfWatchType type,
-      const gchar* service, const gchar* bus_name, const gchar* object_path);
+    static GfWatch* gfWatchNew(GfWatchType, const gchar*, const gchar*,
+      const gchar*, Watcher*);
     static void nameVanished(GDBusConnection* connection, const char* name,
       gpointer data);
 
diff --git a/src/bar.cpp b/src/bar.cpp
index 750816c..7b21018 100644
--- a/src/bar.cpp
+++ b/src/bar.cpp
@@ -198,14 +198,14 @@ auto waybar::Bar::setupWidgets() -> void
   getModules(factory, "modules-left");
   getModules(factory, "modules-center");
   getModules(factory, "modules-right");
-  for (auto& module : modules_left_) {
+  for (auto const& module : modules_left_) {
     left.pack_start(*module, false, true, 0);
   }
-  for (auto& module : modules_center_) {
+  for (auto const& module : modules_center_) {
     center.pack_start(*module, true, true, 0);
   }
   std::reverse(modules_right_.begin(), modules_right_.end());
-  for (auto& module : modules_right_) {
+  for (auto const& module : modules_right_) {
     right.pack_end(*module, false, false, 0);
   }
 }
diff --git a/src/modules/battery.cpp b/src/modules/battery.cpp
index 78470e7..002b8ed 100644
--- a/src/modules/battery.cpp
+++ b/src/modules/battery.cpp
@@ -4,7 +4,7 @@ waybar::modules::Battery::Battery(const Json::Value& config)
   : ALabel(config, "{capacity}%")
 {
   try {
-    for (auto &node : fs::directory_iterator(data_dir_)) {
+    for (auto const& node : fs::directory_iterator(data_dir_)) {
       if (fs::is_directory(node) && fs::exists(node / "capacity")
         && fs::exists(node / "status") && fs::exists(node / "uevent")) {
         batteries_.push_back(node);
@@ -20,7 +20,7 @@ waybar::modules::Battery::Battery(const Json::Value& config)
   if (fd_ == -1) {
     throw std::runtime_error("Unable to listen batteries.");
   }
-  for (auto &bat : batteries_) {
+  for (auto const& bat : batteries_) {
     inotify_add_watch(fd_, (bat / "uevent").c_str(), IN_ACCESS);
   }
   label_.set_name("battery");
@@ -51,7 +51,7 @@ auto waybar::modules::Battery::update() -> void
   try {
     uint16_t total = 0;
     std::string status;
-    for (auto &bat : batteries_) {
+    for (auto const& bat : batteries_) {
       uint16_t capacity;
       std::string _status;
       std::ifstream(bat / "capacity") >> capacity;
diff --git a/src/modules/pulseaudio.cpp b/src/modules/pulseaudio.cpp
index 4d41fd5..3e59a67 100644
--- a/src/modules/pulseaudio.cpp
+++ b/src/modules/pulseaudio.cpp
@@ -118,7 +118,7 @@ const std::string waybar::modules::Pulseaudio::getPortIcon() const
     "hifi",
     "phone",
   };
-  for (auto port : ports) {
+  for (auto const& port : ports) {
     if (port_name_.find(port) != std::string::npos) {
       return port;
     }
diff --git a/src/modules/sni/snh.cpp b/src/modules/sni/snh.cpp
index 49a6fb8..4c5ae7e 100644
--- a/src/modules/sni/snh.cpp
+++ b/src/modules/sni/snh.cpp
@@ -2,7 +2,9 @@
 
 #include <iostream>
 
-waybar::modules::SNI::Host::Host(Glib::Dispatcher& dp)
+using namespace waybar::modules::SNI;
+
+Host::Host(Glib::Dispatcher* dp)
 : dp_(dp)
 {
   GBusNameOwnerFlags flags = static_cast<GBusNameOwnerFlags>(
@@ -14,11 +16,7 @@ waybar::modules::SNI::Host::Host(Glib::Dispatcher& dp)
     &Host::busAcquired, nullptr, nullptr, this, nullptr);
 }
 
-waybar::modules::SNI::Host::~Host()
-{
-}
-
-void waybar::modules::SNI::Host::busAcquired(GDBusConnection* connection,
+void Host::busAcquired(GDBusConnection* connection,
   const gchar* name, gpointer data)
 {
   auto host = static_cast<SNI::Host *>(data);
@@ -29,7 +27,7 @@ void waybar::modules::SNI::Host::busAcquired(GDBusConnection* connection,
     &Host::nameAppeared, &Host::nameVanished, data, nullptr);
 }
 
-void waybar::modules::SNI::Host::nameAppeared(GDBusConnection* connection,
+void Host::nameAppeared(GDBusConnection* connection,
   const gchar* name, const gchar* name_owner, gpointer data)
 {
   auto host = static_cast<SNI::Host *>(data);
@@ -45,7 +43,7 @@ void waybar::modules::SNI::Host::nameAppeared(GDBusConnection* connection,
     host->cancellable_, &Host::proxyReady, data);
 }
 
-void waybar::modules::SNI::Host::nameVanished(GDBusConnection* connection,
+void Host::nameVanished(GDBusConnection* connection,
   const gchar* name, gpointer data)
 {
   auto host = static_cast<SNI::Host *>(data);
@@ -55,7 +53,7 @@ void waybar::modules::SNI::Host::nameVanished(GDBusConnection* connection,
   host->items.clear();
 }
 
-void waybar::modules::SNI::Host::proxyReady(GObject* src, GAsyncResult* res,
+void Host::proxyReady(GObject* src, GAsyncResult* res,
   gpointer data)
 {
   GError* error = nullptr;
@@ -78,7 +76,7 @@ void waybar::modules::SNI::Host::proxyReady(GObject* src, GAsyncResult* res,
     &Host::registerHost, data);
 }
 
-void waybar::modules::SNI::Host::registerHost(GObject* src, GAsyncResult* res,
+void Host::registerHost(GObject* src, GAsyncResult* res,
   gpointer data)
 {
   GError* error = nullptr;
@@ -109,7 +107,7 @@ void waybar::modules::SNI::Host::registerHost(GObject* src, GAsyncResult* res,
   g_strfreev(items);
 }
 
-void waybar::modules::SNI::Host::itemRegistered(
+void Host::itemRegistered(
   SnOrgKdeStatusNotifierWatcher* watcher, const gchar* service, gpointer data)
 {
   std::cout << "Item registered" << std::endl;
@@ -117,32 +115,41 @@ void waybar::modules::SNI::Host::itemRegistered(
   host->addRegisteredItem(service);
 }
 
-void waybar::modules::SNI::Host::itemUnregistered(
+void Host::itemUnregistered(
   SnOrgKdeStatusNotifierWatcher* watcher, const gchar* service, gpointer data)
 {
-  std::cout << "Item Unregistered" << std::endl;
+  auto host = static_cast<SNI::Host *>(data);
+  auto [bus_name, object_path] = host->getBusNameAndObjectPath(service);
+  for (auto it = host->items.begin(); it != host->items.end(); ++it) {
+    if (it->bus_name == bus_name && it->object_path == object_path) {
+      host->items.erase(it);
+      std::cout << "Item Unregistered" << std::endl;
+      break;
+    }
+  }
+  host->dp_->emit();
 }
 
-void waybar::modules::SNI::Host::getBusNameAndObjectPath(const gchar* service,
-  gchar** bus_name, gchar** object_path)
+std::tuple<std::string, std::string> Host::getBusNameAndObjectPath(
+  const gchar* service)
 {
-  gchar* tmp = g_strstr_len (service, -1, "/");
+  std::string bus_name;
+  std::string object_path;
+  gchar* tmp = g_strstr_len(service, -1, "/");
   if (tmp != nullptr) {
     gchar** str = g_strsplit(service, "/", 2);
-    *bus_name = g_strdup(str[0]);
-    *object_path = g_strdup(tmp);
+    bus_name = str[0];
+    object_path = tmp;
     g_strfreev(str);
   } else {
-    *bus_name = g_strdup(service);
-    *object_path = g_strdup("/StatusNotifierItem");
+    bus_name = service;
+    object_path = "/StatusNotifierItem";
   }
+  return { bus_name, object_path };
 }
 
-void waybar::modules::SNI::Host::addRegisteredItem(const gchar* service)
+void Host::addRegisteredItem(const gchar* service)
 {
-  gchar* bus_name = nullptr;
-  gchar* object_path = nullptr;
-
-  getBusNameAndObjectPath(service, &bus_name, &object_path);
+  auto [bus_name, object_path] = getBusNameAndObjectPath(service);
   items.emplace_back(bus_name, object_path, dp_);
 }
\ No newline at end of file
diff --git a/src/modules/sni/sni.cpp b/src/modules/sni/sni.cpp
index 0cd06a7..ae5ca4f 100644
--- a/src/modules/sni/sni.cpp
+++ b/src/modules/sni/sni.cpp
@@ -2,22 +2,19 @@
 
 #include <iostream>
 
-waybar::modules::SNI::Item::Item(std::string bus_name, std::string object_path,
-  Glib::Dispatcher& dp)
-  : icon_size(16), effective_icon_size(0),
-    image(Gtk::manage(new Gtk::Image())),
-    bus_name_(bus_name), object_path_(object_path), dp_(dp)
+waybar::modules::SNI::Item::Item(std::string bn, std::string op,
+  Glib::Dispatcher* dp)
+  : bus_name(bn), object_path(op), event_box(),
+    icon_size(16), effective_icon_size(0),
+    image(Gtk::manage(new Gtk::Image())), dp_(dp)
 {
+  event_box.add(*image);
   cancellable_ = g_cancellable_new();
   sn_org_kde_status_notifier_item_proxy_new_for_bus(G_BUS_TYPE_SESSION,
-    G_DBUS_PROXY_FLAGS_NONE, bus_name_.c_str(), object_path_.c_str(),
+    G_DBUS_PROXY_FLAGS_NONE, bus_name.c_str(), object_path.c_str(),
     cancellable_, &Item::proxyReady, this);
 }
 
-waybar::modules::SNI::Item::~Item()
-{
-}
-
 void waybar::modules::SNI::Item::proxyReady(GObject* obj, GAsyncResult* res,
   gpointer data)
 {
@@ -36,8 +33,8 @@ void waybar::modules::SNI::Item::proxyReady(GObject* obj, GAsyncResult* res,
     return;
   }
   auto conn = g_dbus_proxy_get_connection(G_DBUS_PROXY(proxy));
-  g_dbus_connection_call(conn, item->bus_name_.c_str(),
-    item->object_path_.c_str(), "org.freedesktop.DBus.Properties", "GetAll",
+  g_dbus_connection_call(conn, item->bus_name.c_str(),
+    item->object_path.c_str(), "org.freedesktop.DBus.Properties", "GetAll",
     g_variant_new("(s)", "org.kde.StatusNotifierItem"),
     G_VARIANT_TYPE("(a{sv})"), G_DBUS_CALL_FLAGS_NONE, -1,
     item->cancellable_, &Item::getAll, data);
@@ -103,8 +100,8 @@ void waybar::modules::SNI::Item::getAll(GObject* obj, GAsyncResult* res,
   g_variant_iter_free(it);
   g_variant_unref(properties);
   if (item->id.empty() || item->category.empty() || item->status.empty()) {
-    std::cerr << "Invalid Status Notifier Item: " + item->bus_name_ + ","
-      + item->object_path_ << std::endl;
+    std::cerr << "Invalid Status Notifier Item: " + item->bus_name + ","
+      + item->object_path << std::endl;
     return;
   }
   if (!item->icon_theme_path.empty()) {
@@ -113,7 +110,7 @@ void waybar::modules::SNI::Item::getAll(GObject* obj, GAsyncResult* res,
       item->icon_theme_path.c_str());
   }
   item->updateImage();
-  item->dp_.emit();
+  item->dp_->emit();
   // TODO: handle change
 }
 
@@ -144,11 +141,10 @@ Glib::RefPtr<Gdk::Pixbuf> waybar::modules::SNI::Item::getIconByName(
   std::string name, int request_size)
 {
   int icon_size = 0;
-  Glib::RefPtr<Gtk::IconTheme> icon_theme =
-    Gtk::IconTheme::get_default();
+  Glib::RefPtr<Gtk::IconTheme> icon_theme = Gtk::IconTheme::get_default();
   icon_theme->rescan_if_needed();
   auto sizes = icon_theme->get_icon_sizes(name.c_str());
-  for (auto size : sizes) {
+  for (auto const& size : sizes) {
     // -1 == scalable
     if (size == request_size || size == -1) {
       icon_size = request_size;
diff --git a/src/modules/sni/snw.cpp b/src/modules/sni/snw.cpp
index fc314f5..208cc1e 100644
--- a/src/modules/sni/snw.cpp
+++ b/src/modules/sni/snw.cpp
@@ -2,7 +2,9 @@
 
 #include <iostream>
 
-waybar::modules::SNI::Watcher::Watcher()
+using namespace waybar::modules::SNI;
+
+Watcher::Watcher()
 {
   GBusNameOwnerFlags flags = static_cast<GBusNameOwnerFlags>(
     G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT
@@ -13,12 +15,12 @@ waybar::modules::SNI::Watcher::Watcher()
   watcher_ = sn_org_kde_status_notifier_watcher_skeleton_new();
 }
 
-waybar::modules::SNI::Watcher::~Watcher()
+Watcher::~Watcher()
 {
 }
 
-void waybar::modules::SNI::Watcher::busAcquired(GDBusConnection* connection,
-  const gchar* name, gpointer data)
+void Watcher::busAcquired(GDBusConnection* connection, const gchar* name,
+  gpointer data)
 {
   GError* error = nullptr;
   auto host = static_cast<SNI::Watcher*>(data);
@@ -41,9 +43,8 @@ void waybar::modules::SNI::Watcher::busAcquired(GDBusConnection* connection,
   std::cout << "Bus aquired" << std::endl;
 }
 
-gboolean waybar::modules::SNI::Watcher::handleRegisterHost(
-  Watcher* obj, GDBusMethodInvocation* invocation,
-  const gchar* service)
+gboolean Watcher::handleRegisterHost(Watcher* obj,
+  GDBusMethodInvocation* invocation, const gchar* service)
 {
   const gchar* bus_name = service;
   const gchar* object_path = "/StatusNotifierHost";
@@ -64,7 +65,7 @@ gboolean waybar::modules::SNI::Watcher::handleRegisterHost(
       bus_name, object_path);
     return TRUE;
   }
-  watch = gfWatchNew(GF_WATCH_TYPE_HOST, service, bus_name, object_path);
+  watch = gfWatchNew(GF_WATCH_TYPE_HOST, service, bus_name, object_path, obj);
   obj->hosts_ = g_slist_prepend(obj->hosts_, watch);
   sn_org_kde_status_notifier_watcher_set_is_status_notifier_host_registered(
     obj->watcher_, TRUE);
@@ -78,9 +79,8 @@ gboolean waybar::modules::SNI::Watcher::handleRegisterHost(
   return TRUE;
 }
 
-gboolean waybar::modules::SNI::Watcher::handleRegisterItem(
-  Watcher* obj, GDBusMethodInvocation* invocation,
-  const gchar* service)
+gboolean Watcher::handleRegisterItem(Watcher* obj,
+  GDBusMethodInvocation* invocation, const gchar* service)
 {
   const gchar* bus_name = service;
   const gchar* object_path = "/StatusNotifierItem";
@@ -102,7 +102,7 @@ gboolean waybar::modules::SNI::Watcher::handleRegisterItem(
       obj->watcher_, invocation);
     return TRUE;
   }
-  watch = gfWatchNew(GF_WATCH_TYPE_ITEM, service, bus_name, object_path);
+  watch = gfWatchNew(GF_WATCH_TYPE_ITEM, service, bus_name, object_path, obj);
   obj->items_ = g_slist_prepend(obj->items_, watch);
   obj->updateRegisteredItems(obj->watcher_);
   gchar* tmp = g_strdup_printf("%s%s", bus_name, object_path);
@@ -114,8 +114,8 @@ gboolean waybar::modules::SNI::Watcher::handleRegisterItem(
   return TRUE;
 }
 
-waybar::modules::SNI::GfWatch* waybar::modules::SNI::Watcher::gfWatchFind(
-  GSList* list, const gchar* bus_name, const gchar* object_path)
+Watcher::GfWatch* Watcher::gfWatchFind(GSList* list, const gchar* bus_name,
+  const gchar* object_path)
 {
   for (GSList* l = list; l != nullptr; l = g_slist_next (l)) {
     GfWatch* watch = static_cast<GfWatch*>(l->data);
@@ -127,12 +127,12 @@ waybar::modules::SNI::GfWatch* waybar::modules::SNI::Watcher::gfWatchFind(
   return nullptr;
 }
 
-waybar::modules::SNI::GfWatch* waybar::modules::SNI::Watcher::gfWatchNew(
-  GfWatchType type, const gchar* service, const gchar* bus_name,
-  const gchar* object_path)
+Watcher::GfWatch* Watcher::gfWatchNew(GfWatchType type, const gchar* service,
+  const gchar* bus_name, const gchar* object_path, Watcher* watcher)
 {
   GfWatch* watch = g_new0(GfWatch, 1);
   watch->type = type;
+  watch->watcher = watcher;
   watch->service = g_strdup(service);
   watch->bus_name = g_strdup(bus_name);
   watch->object_path = g_strdup(object_path);
@@ -142,26 +142,40 @@ waybar::modules::SNI::GfWatch* waybar::modules::SNI::Watcher::gfWatchNew(
   return watch;
 }
 
-void waybar::modules::SNI::Watcher::nameVanished(GDBusConnection* connection,
-  const char* name, gpointer data)
+void Watcher::nameVanished(GDBusConnection* connection, const char* name,
+  gpointer data)
 {
-  //TODO
-  std::cout << "name vanished" << std::endl;
+  auto watch = static_cast<GfWatch *>(data);
+  if (watch->type == GF_WATCH_TYPE_HOST) {
+    watch->watcher->hosts_ = g_slist_remove(watch->watcher->hosts_, watch);
+    if (watch->watcher->hosts_ == nullptr)  {
+      sn_org_kde_status_notifier_watcher_set_is_status_notifier_host_registered(
+        watch->watcher->watcher_, FALSE);
+      sn_org_kde_status_notifier_watcher_emit_status_notifier_host_registered(
+        watch->watcher->watcher_);
+    }
+  } else if (watch->type == GF_WATCH_TYPE_ITEM) {
+    watch->watcher->items_ = g_slist_remove(watch->watcher->items_, watch);
+    watch->watcher->updateRegisteredItems(watch->watcher->watcher_);
+    gchar* tmp = g_strdup_printf("%s%s", watch->bus_name, watch->object_path);
+    sn_org_kde_status_notifier_watcher_emit_status_notifier_item_unregistered(
+      watch->watcher->watcher_, tmp);
+    g_free(tmp);
+  }
 }
 
-void waybar::modules::SNI::Watcher::updateRegisteredItems(
-  SnOrgKdeStatusNotifierWatcher* obj)
+void Watcher::updateRegisteredItems(SnOrgKdeStatusNotifierWatcher* obj)
 {
   GVariantBuilder builder;
   g_variant_builder_init(&builder, G_VARIANT_TYPE("as")); 
   for (GSList* l = items_; l != nullptr; l = g_slist_next(l)) {
     GfWatch* watch = static_cast<GfWatch*>(l->data);
-    gchar* item = g_strdup_printf ("%s%s", watch->bus_name, watch->object_path);
-    g_variant_builder_add (&builder, "s", item);
-    g_free (item);
+    gchar* item = g_strdup_printf("%s%s", watch->bus_name, watch->object_path);
+    g_variant_builder_add(&builder, "s", item);
+    g_free(item);
   }
   GVariant* variant = g_variant_builder_end(&builder);
-  const gchar** items = g_variant_get_strv (variant, nullptr);
+  const gchar** items = g_variant_get_strv(variant, nullptr);
   sn_org_kde_status_notifier_watcher_set_registered_status_notifier_items(
     obj, items);
   g_variant_unref(variant);
diff --git a/src/modules/sni/tray.cpp b/src/modules/sni/tray.cpp
index 6ddf744..4a6b932 100644
--- a/src/modules/sni/tray.cpp
+++ b/src/modules/sni/tray.cpp
@@ -3,15 +3,15 @@
 #include <iostream>
 
 waybar::modules::SNI::Tray::Tray(const Json::Value& config)
-  : config_(config), watcher_(), host_(dp)
+  : config_(config), watcher_(), host_(&dp)
 {
 }
 
 auto waybar::modules::SNI::Tray::update() -> void
 {
-  for (auto item : host_.items) {
-    item.image->set_tooltip_text(item.title);
-    box_.pack_start(*item.image);
+  for (auto& item : host_.items) {
+    item.event_box.set_tooltip_text(item.title);
+    box_.pack_start(item.event_box);
   }
   if (box_.get_children().size() > 0) {
     box_.set_name("tray");
diff --git a/src/modules/sway/window.cpp b/src/modules/sway/window.cpp
index aac2b43..86e6d90 100644
--- a/src/modules/sway/window.cpp
+++ b/src/modules/sway/window.cpp
@@ -36,7 +36,7 @@ auto waybar::modules::sway::Window::update() -> void
 
 std::string waybar::modules::sway::Window::getFocusedNode(Json::Value nodes)
 {
-  for (auto &node : nodes) {
+  for (auto const& node : nodes) {
     if (node["focused"].asBool() && node["type"] == "con") {
       return node["name"].asString();
     }
diff --git a/src/modules/sway/workspaces.cpp b/src/modules/sway/workspaces.cpp
index b5c6602..b76ef71 100644
--- a/src/modules/sway/workspaces.cpp
+++ b/src/modules/sway/workspaces.cpp
@@ -49,7 +49,7 @@ auto waybar::modules::sway::Workspaces::update() -> void
       ++it;
     }
   }
-  for (auto node : workspaces_) {
+  for (auto const& node : workspaces_) {
     if (!config_["all-outputs"].asBool()
       && bar_.output_name != node["output"].asString()) {
       continue;