diff --git a/modules/home-manager/gtk.nix b/modules/home-manager/gtk.nix
index 0bad6fc..e06611f 100644
--- a/modules/home-manager/gtk.nix
+++ b/modules/home-manager/gtk.nix
@@ -30,36 +30,52 @@ in
       };
     };
 
-  config.gtk = lib.mkIf enable {
-    theme =
-      let
-        flavourUpper = ctp.mkUpper cfg.flavour;
-        accentUpper = ctp.mkUpper cfg.accent;
-        sizeUpper = ctp.mkUpper cfg.size;
+  config = lib.mkIf enable {
+    assertions = [
+      (lib.ctp.assertXdgEnabled "gtk")
+    ];
 
-        # use the light gtk theme for latte
-        gtkTheme =
-          if cfg.flavour == "latte"
-          then "Light"
-          else "Dark";
+    gtk = {
+      theme =
+        let
+          flavourUpper = ctp.mkUpper cfg.flavour;
+          accentUpper = ctp.mkUpper cfg.accent;
+          sizeUpper = ctp.mkUpper cfg.size;
+
+          # use the light gtk theme for latte
+          gtkTheme =
+            if cfg.flavour == "latte"
+            then "Light"
+            else "Dark";
+        in
+        {
+          name = "Catppuccin-${flavourUpper}-${sizeUpper}-${accentUpper}-${gtkTheme}";
+          package = pkgs.catppuccin-gtk.override {
+            inherit (cfg) size tweaks;
+            accents = [ cfg.accent ];
+            variant = cfg.flavour;
+          };
+        };
+
+      cursorTheme =
+        let
+          flavourUpper = ctp.mkUpper cfg.cursor.flavour;
+          accentUpper = ctp.mkUpper cfg.cursor.accent;
+        in
+        lib.mkIf cfg.cursor.enable {
+          name = "Catppuccin-${flavourUpper}-${accentUpper}-Cursors";
+          package = pkgs.catppuccin-cursors.${cfg.cursor.flavour + accentUpper};
+        };
+    };
+
+    xdg.configFile =
+      let
+        gtk4Dir = "${config.gtk.theme.package}/share/themes/${config.gtk.theme.name}/gtk-4.0";
       in
       {
-        name = "Catppuccin-${flavourUpper}-${sizeUpper}-${accentUpper}-${gtkTheme}";
-        package = pkgs.catppuccin-gtk.override {
-          inherit (cfg) size tweaks;
-          accents = [ cfg.accent ];
-          variant = cfg.flavour;
-        };
-      };
-
-    cursorTheme =
-      let
-        flavourUpper = ctp.mkUpper cfg.cursor.flavour;
-        accentUpper = ctp.mkUpper cfg.cursor.accent;
-      in
-      lib.mkIf cfg.cursor.enable {
-        name = "Catppuccin-${flavourUpper}-${accentUpper}-Cursors";
-        package = pkgs.catppuccin-cursors.${cfg.cursor.flavour + accentUpper};
+        "gtk-4.0/assets".source = "${gtk4Dir}/assets";
+        "gtk-4.0/gtk.css".source = "${gtk4Dir}/gtk.css";
+        "gtk-4.0/gtk-dark.css".source = "${gtk4Dir}/gtk-dark.css";
       };
   };
 }