#2621 rename test.test_support to test.support
diff --git a/Lib/test/test_zlib.py b/Lib/test/test_zlib.py
index 4fa263d..485ffdc 100644
--- a/Lib/test/test_zlib.py
+++ b/Lib/test/test_zlib.py
@@ -1,5 +1,5 @@
 import unittest
-from test import test_support
+from test import support
 import zlib
 import binascii
 import random
@@ -460,7 +460,7 @@
 
 
 def test_main():
-    test_support.run_unittest(
+    support.run_unittest(
         ChecksumTestCase,
         ExceptionTestCase,
         CompressTestCase,