diff --git a/Lib/test/test_urllibnet.py b/Lib/test/test_urllibnet.py
index d7ba5d9..1e9cf0d 100644
--- a/Lib/test/test_urllibnet.py
+++ b/Lib/test/test_urllibnet.py
@@ -193,7 +193,7 @@
 
 def test_main():
     test_support.requires('network')
-    with test_support.check_py3k_warnings(
+    with test_support._check_py3k_warnings(
             ("urllib.urlopen.. has been removed", DeprecationWarning)):
         test_support.run_unittest(URLTimeoutTest,
                                   urlopenNetworkTests,