diff --git a/platformapi/jdapi/callback.go b/platformapi/jdapi/callback.go
index a6d88f9b..e6cb7364 100644
--- a/platformapi/jdapi/callback.go
+++ b/platformapi/jdapi/callback.go
@@ -141,8 +141,8 @@ func (a *API) GetOrderDeliveryCallbackMsg(data []byte) (msg *CallbackDeliverySta
 
 func (a *API) GetStoreStockCallbackMsg(data []byte) (msg *CallbackStoreStockMsg, callbackResponse *CallbackResponse) {
 	msg = new(CallbackStoreStockMsg)
-	tmpMsg := make(map[string]interface{})
-	callbackResponse = a.getCommonOrderCallbackMsg(data, tmpMsg, true)
+	var tmpMsg map[string]interface{}
+	callbackResponse = a.getCommonOrderCallbackMsg(data, &tmpMsg, true)
 	if callbackResponse == nil {
 		msg.StationNo = utils.Interface2String(tmpMsg["stationNo"])
 		msg.SkuId = utils.Str2Int64(utils.Interface2String(tmpMsg["skuId"]))