diff --git a/Lib/unittest/mock.py b/Lib/unittest/mock.py
index 480c85bed9b31e..1fa90277e08ec3 100644
--- a/Lib/unittest/mock.py
+++ b/Lib/unittest/mock.py
@@ -2166,8 +2166,6 @@ def _mock_set_magics(self):
 
         if getattr(self, "_mock_methods", None) is not None:
             these_magics = orig_magics.intersection(self._mock_methods)
-
-            remove_magics = set()
             remove_magics = orig_magics - these_magics
 
             for entry in remove_magics: