diff --git a/Lib/test/test_hash.py b/Lib/test/test_hash.py
index 7ce40b9..fa0fb23 100644
--- a/Lib/test/test_hash.py
+++ b/Lib/test/test_hash.py
@@ -35,6 +35,7 @@
         self.same_hash(int(-2**63), long(-2**63), float(-2**63))
         self.same_hash(int(1-2**63), long(1-2**63))
         self.same_hash(int(2**63-1), long(2**63-1))
+        self.same_hash(long(2**63), float(2**63))
 
     def test_coerced_floats(self):
         self.same_hash(long(1.23e300), float(1.23e300))