diff --git a/pkg/bbgo/order_executor_general.go b/pkg/bbgo/order_executor_general.go
index 64df59c00..2046b2ffa 100644
--- a/pkg/bbgo/order_executor_general.go
+++ b/pkg/bbgo/order_executor_general.go
@@ -85,7 +85,6 @@ func NewGeneralOrderExecutor(
 
 	executor := &GeneralOrderExecutor{
 		BaseOrderExecutor: BaseOrderExecutor{
-			exchange:          session.Exchange,
 			session:           session,
 			exchange:          session.Exchange,
 			activeMakerOrders: NewActiveOrderBook(symbol),