diff --git a/modules/home/services/picom/default.nix b/modules/home/services/picom/default.nix
index 3fc60c0..8b97d84 100644
--- a/modules/home/services/picom/default.nix
+++ b/modules/home/services/picom/default.nix
@@ -3,14 +3,12 @@
   config,
   pkgs,
   ...
-}:
-let
+}: let
   inherit (lib) mkEnableOption mkIf;
 
   cfg = config.marleyos.services.picom;
   hasXorg = config.xsession.enable;
-in
-{
+in {
   options.marleyos.services.picom.enable = mkEnableOption "picom";
 
   config = mkIf (cfg.enable && hasXorg) {
@@ -20,7 +18,8 @@ in
     };
 
     # The module config options are a nightmare.
-    xdg.configFile."picom/picom.conf".text = # conf
+    xdg.configFile."picom/picom.conf".text =
+      # conf
       ''
         # Shadows - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
         shadow = true;
@@ -48,6 +47,7 @@ in
         focus-exclude = [ "class_g = 'Cairo-clock'" ];
         opacity-rule = [
           "100:class_g = 'firefox'",
+          "100:class_g = 'zen-alpha'",
           "60:class_g = 'dolphin'",
           "50:class_g = 'cava'"
         ];