diff --git a/pkgs/desktops/gnome/core/gnome-themes-extra/default.nix b/pkgs/desktops/gnome/core/gnome-themes-extra/default.nix
index efc5318fb59b..52aededca0fe 100644
--- a/pkgs/desktops/gnome/core/gnome-themes-extra/default.nix
+++ b/pkgs/desktops/gnome/core/gnome-themes-extra/default.nix
@@ -1,14 +1,12 @@
 { lib, stdenv, fetchurl, intltool, gtk3, gnome, librsvg, pkg-config, pango, atk, gtk2
 , gdk-pixbuf, hicolor-icon-theme }:
 
-let
+stdenv.mkDerivation rec {
   pname = "gnome-themes-extra";
   version = "3.28";
-in stdenv.mkDerivation rec {
-  name = "${pname}-${version}";
 
   src = fetchurl {
-    url = "mirror://gnome/sources/${pname}/${lib.versions.majorMinor version}/${name}.tar.xz";
+    url = "mirror://gnome/sources/gnome-themes-extra/${lib.versions.majorMinor version}/gnome-themes-extra-${version}.tar.xz";
     sha256 = "06aqg9asq2vqi9wr29bs4v8z2bf4manhbhfghf4nvw01y2zs0jvw";
   };