diff --git a/pkgs/development/python-modules/pygobject/default.nix b/pkgs/development/python-modules/pygobject/default.nix
index a3658a96bf3..b72bd8b9b52 100644
--- a/pkgs/development/python-modules/pygobject/default.nix
+++ b/pkgs/development/python-modules/pygobject/default.nix
@@ -3,6 +3,7 @@
 buildPythonPackage rec {
   name = "pygobject-${version}";
   version = "2.28.6";
+  format = "other";
 
   src = fetchurl {
     url = "mirror://gnome/sources/pygobject/2.28/${name}.tar.xz";