diff --git a/nix/modules/nixos/desktop/addons/kitty/default.nix b/nix/modules/nixos/desktop/addons/kitty/default.nix
index 8f4da25..38eb5ff 100644
--- a/nix/modules/nixos/desktop/addons/kitty/default.nix
+++ b/nix/modules/nixos/desktop/addons/kitty/default.nix
@@ -35,6 +35,7 @@ in {
         macos_option_as_alt = "yes";
         share_connections = "no";
         kitty_mod = "ctrl+shift";
+        background_opacity = "0.90";
 
         macos_quit_when_last_window_closed = "no";
         sync_to_monitor = "no";