diff --git a/modules/services/x11/desktop-managers/xfce.nix b/modules/services/x11/desktop-managers/xfce.nix
index d06eb23b8e9..63926ac1ca6 100644
--- a/modules/services/x11/desktop-managers/xfce.nix
+++ b/modules/services/x11/desktop-managers/xfce.nix
@@ -28,8 +28,8 @@ in
         bgSupport = true;
         start =
           ''
-            # Set GTK_PATH so that GTK+ can find the Xfce theme engine.
-            export GTK_PATH=${pkgs.xfce.gtk_xfce_engine}/lib/gtk-2.0
+            # Set GTK_PATH so that GTK+ can find the theme engines.
+            export GTK_PATH=${config.system.path}/lib/gtk-2.0
 
             # Set GTK_DATA_PREFIX so that GTK+ can find the Xfce themes.
             export GTK_DATA_PREFIX=${config.system.path}