diff --git a/stress_tests/__main__.py b/stress_tests/__main__.py
index adba2f12c89131f65889ad65d2addb8895acf7bf..91c50f0f92ac7895d138c81a3c0e6ea34400aa1d 100644
--- a/stress_tests/__main__.py
+++ b/stress_tests/__main__.py
@@ -34,6 +34,8 @@ if __name__ == '__main__':
     notify_client.put(None)
     notify_server.put(None)
 
+    if client.is_alive():
+        client.kill()
     server.join()
     client.join()