diff --git a/pkgs/development/libraries/libgdiplus/default.nix b/pkgs/development/libraries/libgdiplus/default.nix
index 46a53a88d8a9..3b1e5ba0b770 100644
--- a/pkgs/development/libraries/libgdiplus/default.nix
+++ b/pkgs/development/libraries/libgdiplus/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   patches =
     [ (fetchurl {
-        url = http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/dev-dotnet/libgdiplus/files/libgdiplus-2.10.1-libpng15.patch?revision=1.1;
+        url = "https://raw.github.com/MagicGroup/MagicSpecLib/master/libgdiplus/libgdiplus-2.10.1-libpng15.patch";
         sha256 = "130r0jm065pjvbz5dkx96w37vj1wqc8fakmi2znribs14g0bl65f";
       })
     ];