diff --git a/modules/nitrokey.nix b/modules/nitrokey.nix
index 63eb10a..bf32140 100644
--- a/modules/nitrokey.nix
+++ b/modules/nitrokey.nix
@@ -1,16 +1,19 @@
-# SPDX-FileCopyrightText: 2023 Simon Bruder <simon@sbruder.de>
+# SPDX-FileCopyrightText: 2023-2024 Simon Bruder <simon@sbruder.de>
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
 { config, lib, pkgs, ... }:
 
-{
-  hardware.nitrokey.enable = true;
-} // (lib.mkIf config.sbruder.gui.enable {
-  environment.systemPackages = with pkgs; [
-    # both depend on pypemicro, which is not needed, but nixpkgs requires it
-    # (even though it could have been optional: https://github.com/NixOS/nixpkgs/pull/183099#discussion_r933226708)
-    #nitrokey-app2
-    #pynitrokey
-  ];
-})
+lib.mkMerge [
+  {
+    hardware.nitrokey.enable = true;
+  }
+  (lib.mkIf config.sbruder.gui.enable {
+    environment.systemPackages = with pkgs; [
+      # both depend on pypemicro, which is not needed, but nixpkgs requires it
+      # (even though it could have been optional: https://github.com/NixOS/nixpkgs/pull/183099#discussion_r933226708)
+      #nitrokey-app2
+      #pynitrokey
+    ];
+  })
+]