diff --git a/Lib/test/test_imp.py b/Lib/test/test_imp.py
index d60e2fc..c06cff9 100644
--- a/Lib/test/test_imp.py
+++ b/Lib/test/test_imp.py
@@ -328,7 +328,7 @@
         importlib.invalidate_caches()
         expected___file__ = os.sep.join(('.', 'pep3147', '__init__.py'))
         m = __import__('pep3147')
-        self.assertEqual(m.__file__, expected___file__, (m.__file__, m.__path__))
+        self.assertEqual(m.__file__, expected___file__, (m.__file__, m.__path__, sys.path))
         # Ensure we load the pyc file.
         support.unload('pep3147')
         m = __import__('pep3147')