diff --git a/nixos/modules/programs/wayland/gtklock.nix b/nixos/modules/programs/wayland/gtklock.nix
index e1162ad99a64..debee91a7475 100644
--- a/nixos/modules/programs/wayland/gtklock.nix
+++ b/nixos/modules/programs/wayland/gtklock.nix
@@ -69,7 +69,9 @@ in
       );
     };
 
-    environment.etc."xdg/gtklock/config.ini".source = configFormat.generate "config.ini" cfg.config;
+    environment.etc."xdg/gtklock/config.ini" = lib.mkIf (cfg.config != { }) {
+      source = configFormat.generate "config.ini" cfg.config;
+    };
 
     environment.systemPackages = [ cfg.package ];