diff --git a/Lib/test/pickletester.py b/Lib/test/pickletester.py
index b20f599..5ac2bdc 100644
--- a/Lib/test/pickletester.py
+++ b/Lib/test/pickletester.py
@@ -493,7 +493,7 @@
     def test_ints(self):
         import sys
         for proto in protocols:
-            n = sys.maxint
+            n = sys.maxsize
             while n:
                 for expected in (-n, n):
                     s = self.dumps(expected, proto)