diff --git a/tornado/test/websocket_test.py b/tornado/test/websocket_test.py
index 2e14342c197939572d8ad4b5aeffe6b753bab5a3..4fb918ec946f0bd64edf6f6d9e3b787fb5bf26f9 100644
--- a/tornado/test/websocket_test.py
+++ b/tornado/test/websocket_test.py
@@ -25,7 +25,9 @@ except ImportError:
     traceback.print_exc()
     raise
 
-from tornado.websocket import WebSocketHandler, websocket_connect, WebSocketError, WebSocketClosedError
+from tornado.websocket import (
+    WebSocketHandler, websocket_connect, WebSocketError, WebSocketClosedError,
+)
 
 try:
     from tornado import speedups