diff --git a/tests/lib/venv.py b/tests/lib/venv.py
index f1bdaa85b79..67b01d9f31e 100644
--- a/tests/lib/venv.py
+++ b/tests/lib/venv.py
@@ -50,7 +50,7 @@ def _legacy_virtualenv(self) -> bool:
         return int(_virtualenv.__version__.split(".", 1)[0]) < 20
 
     def __update_paths_legacy(self) -> None:
-        home, lib, inc, bin = _virtualenv.path_locations(self.location)
+        home, lib, inc, bin = _virtualenv.path_locations(self.location)  # type: ignore[attr-defined]
         self.bin = Path(bin)
         self.site = Path(lib) / "site-packages"
         # Workaround for https://github.com/pypa/virtualenv/issues/306