diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
index c35b920758db43..487ad4b4ec0dda 100644
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -4610,6 +4610,8 @@ def tearDown(self):
             self.proc.terminate()
             self.proc.join()
         self.manager.shutdown()
+        self.manager = None
+        self.proc = None
 
     @classmethod
     def setUpClass(cls):