diff --git a/src/modules/wlr/taskbar.cpp b/src/modules/wlr/taskbar.cpp
index f588970..95a7a51 100644
--- a/src/modules/wlr/taskbar.cpp
+++ b/src/modules/wlr/taskbar.cpp
@@ -77,6 +77,7 @@ static bool image_load_icon(Gtk::Image& image, Glib::RefPtr<Gtk::IconTheme> icon
         const std::string &app_id_list, int size)
 {
     std::string app_id;
+    std::string lower_app_id;
     std::istringstream stream(app_id_list);
     bool found = false;
 
@@ -85,9 +86,19 @@ static bool image_load_icon(Gtk::Image& image, Glib::RefPtr<Gtk::IconTheme> icon
      * send a single app-id, but in any case this works fine */
     while (stream >> app_id)
     {
-        std::string icon_name = get_from_desktop_app_info(app_id);
+        std::string icon_name = get_from_icon_theme(icon_theme, app_id);
+        if (icon_name.empty()) {
+            lower_app_id = app_id;
+            std::transform(lower_app_id.begin(), lower_app_id.end(), lower_app_id.begin(),
+                    [](char c){ return std::tolower(c); });
+            icon_name = get_from_icon_theme(icon_theme, lower_app_id);
+        }
+
         if (icon_name.empty())
-            icon_name = get_from_icon_theme(icon_theme, app_id);
+            icon_name = get_from_desktop_app_info(app_id);
+
+        if (icon_name.empty())
+            icon_name = get_from_desktop_app_info(lower_app_id);
 
         if (icon_name.empty())
             continue;
@@ -271,7 +282,7 @@ void Task::handle_title(const char *title)
 void Task::handle_app_id(const char *app_id)
 {
     app_id_ = app_id;
-    if (!image_load_icon(icon_, tbar_->icon_theme(), app_id_,
+    if (!image_load_icon(icon_, tbar_->icon_theme(),  app_id_,
                  config_["icon-size"].isInt() ? config_["icon-size"].asInt() : 16))
         spdlog::warn("Failed to load icon for {}", app_id);