diff --git a/Lib/test/test_wsgiref.py b/Lib/test/test_wsgiref.py
index 638c432e7bd..4076b6862bc 100644
--- a/Lib/test/test_wsgiref.py
+++ b/Lib/test/test_wsgiref.py
@@ -15,6 +15,8 @@ import re
 import sys
 import unittest
 
+from test import support
+
 
 class MockServer(WSGIServer):
     """Non-socket HTTP server"""