diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 18a6c0e965b0..c6c51c54dfbc 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -662,6 +662,7 @@ in {
 
   pyqt4 = callPackage ../development/python-modules/pyqt/4.x.nix {
     pythonPackages = self;
+    inherit (pkgs) pkgconfig;
   };
 
   pyqt5 = pkgs.libsForQt5.callPackage ../development/python-modules/pyqt/5.x.nix {