diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
index a05babf..fa36095 100644
--- a/Lib/test/test_builtin.py
+++ b/Lib/test/test_builtin.py
@@ -1395,6 +1395,9 @@
 
         self.assertEqual(round(-8.0, -1), -10.0)
 
+        # test new kwargs
+        self.assertEqual(round(number=-8.0, ndigits=-1), -10.0)
+
         self.assertRaises(TypeError, round)
 
     def test_setattr(self):