diff --git a/pkgs/desktops/xfce/art/xfwm4-themes/default.nix b/pkgs/desktops/xfce/art/xfwm4-themes/default.nix
index 569a18a796e8..31623598d316 100644
--- a/pkgs/desktops/xfce/art/xfwm4-themes/default.nix
+++ b/pkgs/desktops/xfce/art/xfwm4-themes/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     homepage = "https://www.xfce.org/";
     description = "Themes for Xfce";
-    license = licenses.gpl3;
+    license = licenses.gpl3Only;
     platforms = platforms.linux;
     maintainers = [ maintainers.volth ];
   };