diff --git a/upstart-jobs/xserver/desktopManager/kde4.nix b/upstart-jobs/xserver/desktopManager/kde4.nix
index d7d91812a5d..d39356f05de 100644
--- a/upstart-jobs/xserver/desktopManager/kde4.nix
+++ b/upstart-jobs/xserver/desktopManager/kde4.nix
@@ -2,7 +2,7 @@
 
 let
   inherit (pkgs.lib) mkOption mkIf;
-  cfg = config.services.xserver.desktopManager.kde;
+  cfg = config.services.xserver.desktopManager.kde4;
   xorg = config.services.xserver.package;
 
   options = { services = { xserver = { desktopManager = {