diff --git a/nixos/tests/make-test-python.nix b/nixos/tests/make-test-python.nix
index 7a96f538d8d7..28569f1d2955 100644
--- a/nixos/tests/make-test-python.nix
+++ b/nixos/tests/make-test-python.nix
@@ -1,6 +1,6 @@
 f: {
   system ? builtins.currentSystem,
-  pkgs ? import ../.. { inherit system; },
+  pkgs ? import ../.. { inherit system; config = {}; overlays = []; },
   ...
 } @ args: