diff --git a/tests/api/base/WebSocketClientTest.py b/tests/api/base/WebSocketClientTest.py
index dc9651dd..8d931ecf 100644
--- a/tests/api/base/WebSocketClientTest.py
+++ b/tests/api/base/WebSocketClientTest.py
@@ -2,10 +2,10 @@
 import unittest
 
 from Promise import Promise
-from vnpy.api.websocket import WebsocketClient
+from vnpy.api.websocket import WebSocketClient
 
 
-class TestWebsocketClient(WebsocketClient):
+class TestWebsocketClient(WebSocketClient):
     
     def __init__(self):
         host = 'wss://echo.websocket.org'
diff --git a/vnpy/api/websocket/WebSocketClient.py b/vnpy/api/websocket/WebSocketClient.py
index 3cde4ef7..e208ce8f 100644
--- a/vnpy/api/websocket/WebSocketClient.py
+++ b/vnpy/api/websocket/WebSocketClient.py
@@ -12,7 +12,7 @@ from threading import Thread, Lock
 import websocket
 
 
-class WebsocketClient(object):
+class WebSocketClient(object):
     """Websocket API"""
     
     #----------------------------------------------------------------------
diff --git a/vnpy/api/websocket/__init__.py b/vnpy/api/websocket/__init__.py
index 3e58eeb4..5c44c43f 100644
--- a/vnpy/api/websocket/__init__.py
+++ b/vnpy/api/websocket/__init__.py
@@ -1 +1 @@
-from .WebSocketClient import WebsocketClient
+from .WebSocketClient import WebSocketClient