diff --git a/src/simulation/simulation_trader.py b/src/simulation/simulation_trader.py
index 738ddbb..30e9d22 100644
--- a/src/simulation/simulation_trader.py
+++ b/src/simulation/simulation_trader.py
@@ -53,7 +53,7 @@ class SimulationTrader(BaseTrader):
         # 更新持仓管理器
         position_manager = self.get_position_manager(strategy_name)
         position_manager.update_position(
-            strategy_name, code, ORDER_DIRECTION_BUY, amount
+            code, ORDER_DIRECTION_BUY, amount
         )
         order_id = random.randint(1, 999999)  # 使用随机函数生成小于1000000的随机整数
         position_manager.add_pending_order(