#13054: sys.maxunicode is now always 0x10FFFF.
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index 0b7bbf1..c99f4d7 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -447,6 +447,7 @@
 
         self.assertIsInstance(sys.maxsize, int)
         self.assertIsInstance(sys.maxunicode, int)
+        self.assertEqual(sys.maxunicode, 0x10FFFF)
         self.assertIsInstance(sys.platform, str)
         self.assertIsInstance(sys.prefix, str)
         self.assertIsInstance(sys.version, str)