diff --git a/business/partner/purchase/mtwm/act.go b/business/partner/purchase/mtwm/act.go
index dac4b5c2c..4571a5b4b 100644
--- a/business/partner/purchase/mtwm/act.go
+++ b/business/partner/purchase/mtwm/act.go
@@ -18,8 +18,9 @@ func jxActType2Mtwm(actType int) int {
 		actType = mtwmapi.RetailActTypeDirectDown
 	} else if actType == model.ActSkuSecKill {
 		actType = mtwmapi.RetailActTypeSecKill
+	} else {
+		actType = 0
 	}
-	actType = 0
 	return actType
 }