diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index 17d96b2..a02fe39 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -1044,6 +1044,11 @@
             del h
         self.assertEqual(s.getvalue(), '')
 
+        class X(object):
+            __slots__ = "a"
+        with self.assertRaises(AttributeError):
+            del X().a
+
     def test_slots_special(self):
         # Testing __dict__ and __weakref__ in __slots__...
         class D(object):