diff --git a/tests/test_setattr.py b/tests/test_setattr.py
index 2fc781bf0..9db72c952 100644
--- a/tests/test_setattr.py
+++ b/tests/test_setattr.py
@@ -290,7 +290,7 @@ def __setattr__(self, key, value):
         with pytest.raises(SystemError):
             A().x = 1
 
-    @pytest.mark.xfail
+    @pytest.mark.xfail(raises=attr.exceptions.FrozenAttributeError)
     def test_slotted_confused(self):
         """
         If we have a in-between non-attrs class, setattr reset detection