diff --git a/tests/slack_sdk/web/mock_web_api_handler.py b/tests/slack_sdk/web/mock_web_api_handler.py
index 0916e764..12a487e0 100644
--- a/tests/slack_sdk/web/mock_web_api_handler.py
+++ b/tests/slack_sdk/web/mock_web_api_handler.py
@@ -76,6 +76,7 @@ def _handle(self):
         try:
             # put_nowait is common between Queue & asyncio.Queue, it does not need to be awaited
             self.server.queue.put_nowait(self.path)
+
             if self.path in {"/oauth.access", "/oauth.v2.access"}:
                 self.send_response(200)
                 self.set_common_headers()