diff --git a/modules/services/x11/xserver/display-managers/kdm.nix b/modules/services/x11/xserver/display-managers/kdm.nix
index e7f22cf1f34..86340c3cd6d 100644
--- a/modules/services/x11/xserver/display-managers/kdm.nix
+++ b/modules/services/x11/xserver/display-managers/kdm.nix
@@ -58,7 +58,7 @@ in
         execCmd = "${kdebase_workspace}/bin/kdm -config ${kdmrc}/kdmrc";
       };
 
-    security.pam.services = [ { name = "slim"; localLogin = true; } ];
+    security.pam.services = [ { name = "kde"; localLogin = true; } ];
       
   };