diff --git a/app/third/paymentService/wechat_service.go b/app/third/paymentService/wechat_service.go
index 1a33eba..d4d1ec8 100644
--- a/app/third/paymentService/wechat_service.go
+++ b/app/third/paymentService/wechat_service.go
@@ -104,7 +104,7 @@ func WxPayCallBack(notifyReq *wechat.V3NotifyReq, wxConfig WxPay) error {
 		return err
 	}
 	var CallBackInfo struct {
-		AppId          string `json:"app_id"`           //	应用ID
+		AppId          string `json:"appid"`            //	应用ID
 		Mchid          string `json:"mchid"`            //	商户号
 		OutTradeNo     string `json:"out_trade_no"`     //	商户系统内部订单号
 		TransactionId  string `json:"transaction_id"`   //	微信系统订单号