diff --git a/Lib/test/test_import/__init__.py b/Lib/test/test_import/__init__.py
index 9f2c402bedf419..437940c95ea4f3 100644
--- a/Lib/test/test_import/__init__.py
+++ b/Lib/test/test_import/__init__.py
@@ -1413,7 +1413,7 @@ def test_foreign_code(self):
         self.assertEqual(mod.constant.co_filename, foreign_code.co_filename)
 
 
-class PathsTests(unittest.TestCase):
+class PathsTests(unittest.TestCase, ExtraAssertions):
     SAMPLES = ('test', 'test\u00e4\u00f6\u00fc\u00df', 'test\u00e9\u00e8',
                'test\u00b0\u00b3\u00b2')
     path = TESTFN