diff --git a/Lib/test/test_set.py b/Lib/test/test_set.py
index 1e0a909..627c48c 100644
--- a/Lib/test/test_set.py
+++ b/Lib/test/test_set.py
@@ -48,6 +48,7 @@
 
     def test_new_or_init(self):
         self.assertRaises(TypeError, self.thetype, [], 2)
+        self.assertRaises(TypeError, set().__init__, a=1)
 
     def test_uniquification(self):
         actual = sorted(self.s)