diff --git a/vnpy/api/ib/vnib/vnib/vnib.cpp b/vnpy/api/ib/vnib/vnib/vnib.cpp
index 261aeba0..2fc4d66c 100644
--- a/vnpy/api/ib/vnib/vnib/vnib.cpp
+++ b/vnpy/api/ib/vnib/vnib/vnib.cpp
@@ -1798,9 +1798,6 @@ BOOST_PYTHON_MODULE(vnib)
 	class_<std::vector<ibapi::shared_ptr<OrderCondition>>>("OrderConditionList")
 		.def(vector_indexing_suite<std::vector<ibapi::shared_ptr<OrderCondition>>, true>());
 
-	class_<std::vector<ibapi::shared_ptr<OrderCondition>>>("OrderConditionList")
-		.def(vector_indexing_suite<std::vector<ibapi::shared_ptr<OrderCondition>>, true>());
-
 	class_<std::vector<std::string>>("StringList")
 		.def(vector_indexing_suite<std::vector<std::string>, true>());
 
diff --git a/vnpy/trader/app/ctaStrategy/tools/ctaLineBar.py b/vnpy/trader/app/ctaStrategy/tools/ctaLineBar.py
index a741c362..8d72331a 100644
--- a/vnpy/trader/app/ctaStrategy/tools/ctaLineBar.py
+++ b/vnpy/trader/app/ctaStrategy/tools/ctaLineBar.py
@@ -228,7 +228,7 @@ class CtaLineBar(object):
         self.__recountEma()
         self.__recountDmi()
         self.__recountAtr()
-        self.__recoundAvgVol()
+        self.__recountAvgVol()
         self.__recountRsi()
         self.__recountCmi()
         self.__recountBoll()
@@ -695,7 +695,7 @@ class CtaLineBar(object):
             self.lineAtr3.append(self.barAtr3)
 
     #----------------------------------------------------------------------
-    def __recoundAvgVol(self):
+    def __recountAvgVol(self):
         """计算平均成交量"""
 
         # 1、lineBar满足长度才执行计算