diff --git a/Lib/test/test_httpservers.py b/Lib/test/test_httpservers.py
index fb4ae1928ba..8cddcdc4384 100644
--- a/Lib/test/test_httpservers.py
+++ b/Lib/test/test_httpservers.py
@@ -56,6 +56,7 @@ def run(self):
 
     def stop(self):
         self.server.shutdown()
+        self.join()
 
 
 class BaseTestCase(unittest.TestCase):