diff --git a/resources/style.css b/resources/style.css
index 39eb6ce..ea88131 100644
--- a/resources/style.css
+++ b/resources/style.css
@@ -14,7 +14,7 @@ window#waybar {
     transition-duration: .5s;
 }
 
-window#waybar.hidded {
+window#waybar.hidden {
     opacity: 0.2;
 }
 
diff --git a/src/bar.cpp b/src/bar.cpp
index 7a48a48..dfe01ec 100644
--- a/src/bar.cpp
+++ b/src/bar.cpp
@@ -198,9 +198,9 @@ auto waybar::Bar::toggle() -> void {
   visible = !visible;
   auto zone = visible ? height_ : 0;
   if (!visible) {
-    window.get_style_context()->add_class("hidded");
+    window.get_style_context()->add_class("hidden");
   } else {
-    window.get_style_context()->remove_class("hidded");
+    window.get_style_context()->remove_class("hidden");
   }
   zwlr_layer_surface_v1_set_exclusive_zone(layer_surface, zone);
   wl_surface_commit(surface);