diff --git a/Lib/test/test_concurrent_futures.py b/Lib/test/test_concurrent_futures.py
@@ -226,11 +226,14 @@ def test_del_shutdown(self):
        list(executor.map(abs, range(-5, 5)))
        queue_management_thread = executor._queue_management_thread
        processes = executor._processes
        del executor

        queue_management_thread.join()
        for p in processes.values():
            p.join()


class WaitTests: