diff --git a/pkgs/development/python-modules/pygit2/default.nix b/pkgs/development/python-modules/pygit2/default.nix
index d0cd948bdcde..27bfcff16d81 100644
--- a/pkgs/development/python-modules/pygit2/default.nix
+++ b/pkgs/development/python-modules/pygit2/default.nix
@@ -21,6 +21,8 @@ buildPythonPackage rec {
     cached-property
   ] ++ lib.optional (!isPyPy) cffi;
 
+  propagatedNativeBuildInputs = lib.optional (!isPyPy) cffi;
+
   checkInputs = [ pytestCheckHook ];
 
   preCheck = ''