diff --git a/vn.trader/ctaAlgo/ctaEngine.py b/vn.trader/ctaAlgo/ctaEngine.py
index 9fa53304..941448ce 100644
--- a/vn.trader/ctaAlgo/ctaEngine.py
+++ b/vn.trader/ctaAlgo/ctaEngine.py
@@ -163,7 +163,7 @@ class CtaEngine(object):
             for so in self.workingStopOrderDict.values():
                 if so.vtSymbol == vtSymbol:
                     longTriggered = so.direction==DIRECTION_LONG and tick.lastPrice>=so.price        # 多头停止单被触发
-                    shortTriggered = so.direction==DIRECTION_SHORT and tick.lasatPrice<=so.price     # 空头停止单被触发
+                    shortTriggered = so.direction==DIRECTION_SHORT and tick.lastPrice<=so.price     # 空头停止单被触发
                     
                     if longTriggered or shortTriggered:
                         # 买入和卖出分别以涨停跌停价发单（模拟市价单）