diff --git a/system/desktop.nix b/system/desktop.nix
index ed6cadec..7f68c148 100644
--- a/system/desktop.nix
+++ b/system/desktop.nix
@@ -18,7 +18,7 @@
     ];
   security = {
     rtkit.enable = true;
-    pam.services.gtklock = { };
+    pam.services.gtklock.gnupg.enable = true;
   };
   sound.enable = true;
   hardware = {