diff --git a/Lib/test/test_unicode.py b/Lib/test/test_unicode.py
index 97be587..885e740 100644
--- a/Lib/test/test_unicode.py
+++ b/Lib/test/test_unicode.py
@@ -788,6 +788,7 @@
         self.assertEqual('%c' % '\U00021483', '\U00021483')
         self.assertRaises(TypeError, "%c".__mod__, "aa")
         self.assertRaises(ValueError, "%.1\u1032f".__mod__, (1.0/3))
+        self.assertRaises(TypeError, "%i".__mod__, "aa")
 
         # formatting jobs delegated from the string implementation:
         self.assertEqual('...%(foo)s...' % {'foo':"abc"}, '...abc...')