diff --git a/configuration.nix b/configuration.nix
index 377b554..d46772b 100755
--- a/configuration.nix
+++ b/configuration.nix
@@ -47,8 +47,8 @@ in
 	services.xserver.enable = true;
 
 	# Enable the GNOME Desktop Environment.
-	services.xserver.displayManager.gdm.enable = true;
-	services.xserver.desktopManager.gnome.enable = true;
+	services.displayManager.gdm.enable = true;
+	services.desktopManager.gnome.enable = true;
 
 	# Configure keymap in X11
 	services.xserver.xkb = {