diff --git a/pkgs/development/libraries/gtk-libs/2.14/glibmm/default.nix b/pkgs/development/libraries/gtk-libs/2.14/glibmm/default.nix
index 790b006f90a..95259101157 100644
--- a/pkgs/development/libraries/gtk-libs/2.14/glibmm/default.nix
+++ b/pkgs/development/libraries/gtk-libs/2.14/glibmm/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "glibmm-2.18.1";
 
   src = fetchurl {
-    url = "mirror://gnome/GNOME/sources/glibmm/2.18/${name}.tar.bz2";
+    url = "mirror://gnome/sources/glibmm/2.18/${name}.tar.bz2";
     sha256 = "0jg65hv6pwxqk4fabsjjz2zwn5hb6rgy3szj956avliarbliyr3r";
   };