diff --git a/pkgs/development/python-modules/gbinder-python/default.nix b/pkgs/development/python-modules/gbinder-python/default.nix
index e575c51e315f..9d9b906e2443 100644
--- a/pkgs/development/python-modules/gbinder-python/default.nix
+++ b/pkgs/development/python-modules/gbinder-python/default.nix
@@ -26,6 +26,11 @@ buildPythonPackage rec {
     pkg-config
   ];
 
+  postPatch = ''
+    # Fix pkg-config name for cross-compilation
+    substituteInPlace setup.py --replace "pkg-config" "$PKG_CONFIG"
+  '';
+
   setupPyGlobalFlags = [ "--cython" ];
 
   meta = with lib; {