diff --git a/pkgs/development/libraries/cairomm/default.nix b/pkgs/development/libraries/cairomm/default.nix
index 47f0668e5c76..b1ee0b8d2736 100644
--- a/pkgs/development/libraries/cairomm/default.nix
+++ b/pkgs/development/libraries/cairomm/default.nix
@@ -7,9 +7,9 @@ stdenv.mkDerivation rec {
   name = "cairomm-${ver_maj}.${ver_min}";
 
   src = fetchurl {
-    url = "http://www.cairographics.org/releases/${name}.tar.gz";
-    # gnome doesn't have the latest version ATM
-    #url = "mirror://gnome/sources/cairomm/${ver_maj}/${name}.tar.xz";
+    #url = "http://www.cairographics.org/releases/${name}.tar.gz";
+    # gnome doesn't have the latest version ATM; beware: same name but different hash
+    url = "mirror://gnome/sources/cairomm/${ver_maj}/${name}.tar.xz";
     sha256 = "a54ada8394a86182525c0762e6f50db6b9212a2109280d13ec6a0b29bfd1afe6";
   };