diff --git a/pkgs/development/interpreters/spidermonkey/1.8.5.nix b/pkgs/development/interpreters/spidermonkey/1.8.5.nix
index 8e51b9b7d58e..f333aa0b96d0 100644
--- a/pkgs/development/interpreters/spidermonkey/1.8.5.nix
+++ b/pkgs/development/interpreters/spidermonkey/1.8.5.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   patches = [
     (fetchpatch {
       name = "gcc6.patch";
-      url = "https://anonscm.debian.org/cgit/collab-maint/mozjs.git/plain/debian/patches/fix-811665.patch?id=00b15c7841968ab4f7fec409a6b93fa5e1e1d32e";
+      url = "https://sources.debian.org/data/main/m/mozjs/1.8.5-1.0.0+dfsg-6/debian/patches/fix-811665.patch";
       sha256 = "1q8477xqxiy5d8376k5902l45gd0qkd4nxmhl8vr6rr1pxfcny99";
     })
   ] ++ stdenv.lib.optionals stdenv.isAarch32 [