diff --git a/Lib/test/test_repr.py b/Lib/test/test_repr.py
index a659002..89df890 100644
--- a/Lib/test/test_repr.py
+++ b/Lib/test/test_repr.py
@@ -199,6 +199,7 @@
         from areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation import areallylongpackageandmodulenametotestreprtruncation
         eq(repr(areallylongpackageandmodulenametotestreprtruncation),
            "<module 'areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation' from '%s'>" % areallylongpackageandmodulenametotestreprtruncation.__file__)
+        eq(repr(sys), "<module 'sys' (built-in)>")
 
     def test_type(self):
         eq = self.assertEquals