diff --git a/Lib/test/test_devpoll.py b/Lib/test/test_devpoll.py
index bd0db616645..7fa4203cdb6 100644
--- a/Lib/test/test_devpoll.py
+++ b/Lib/test/test_devpoll.py
@@ -8,6 +8,7 @@ import select
 import sys
 import unittest
 from test.support import TESTFN, run_unittest
+from _testcapi import USHRT_MAX
 
 try:
     select.devpoll