diff --git a/pkgs/data/themes/catppuccin-gtk/default.nix b/pkgs/data/themes/catppuccin-gtk/default.nix
index 79e1bca4c4f5..49df77b2adb9 100644
--- a/pkgs/data/themes/catppuccin-gtk/default.nix
+++ b/pkgs/data/themes/catppuccin-gtk/default.nix
@@ -16,7 +16,7 @@
 let
   validAccents = [ "blue" "flamingo" "green" "lavender" "maroon" "mauve" "peach" "pink" "red" "rosewater" "sapphire" "sky" "teal" "yellow" ];
   validSizes = [ "standard" "compact" ];
-  validTweaks = [ "black" "rimless" "normal" ];
+  validTweaks = [ "black" "rimless" "normal" "float" ];
   validVariants = [ "latte" "frappe" "macchiato" "mocha" ];
 
   pname = "catppuccin-gtk";