diff --git a/nixops/desktop.nix b/nixops/desktop.nix
index e20e7888..773f6093 100644
--- a/nixops/desktop.nix
+++ b/nixops/desktop.nix
@@ -121,7 +121,7 @@ in
   };
   services.avahi = {
     enable = true;
-    nssmdns = true;
+    nssmdns4 = true;
   };
 
   # Enable sound.
@@ -138,8 +138,8 @@ in
 
   # Enable the X11 windowing system.
   services.xserver.enable = true;
-  services.xserver.layout = "us";
-  services.xserver.xkbOptions = "eurosign:e";
+  services.xserver.xkb.layout = "us";
+  services.xserver.xkb.options = "eurosign:e";
 
   services.xserver.displayManager.gdm.enable = true;
   services.xserver.desktopManager.gnome.enable = true;