diff --git a/vnpy/trader/gateway/ctpGateway/ctpGateway.py b/vnpy/trader/gateway/ctpGateway/ctpGateway.py
index 0aa11e72..bfd68504 100644
--- a/vnpy/trader/gateway/ctpGateway/ctpGateway.py
+++ b/vnpy/trader/gateway/ctpGateway/ctpGateway.py
@@ -108,7 +108,7 @@ class CtpGateway(VtGateway):
     def connect(self):
         """连接"""
         try:
-            f = file(self.filePath)
+            f = open(self.filePath)
         except IOError:
             log = VtLogData()
             log.gatewayName = self.gatewayName