diff --git a/server/payserver/api/v1/mainservice/mainservice.go b/server/payserver/api/v1/mainservice/mainservice.go
index b0ba265..c4d0380 100644
--- a/server/payserver/api/v1/mainservice/mainservice.go
+++ b/server/payserver/api/v1/mainservice/mainservice.go
@@ -221,7 +221,7 @@ func (this *MainServiceApi) WxNotifyPurchase(c *gin.Context) {
 		originstr += "&goodsid=" + payloadobj.GoodsInfo.ProductId
 		originstr += "&orderid=" + orderModel.OrderId
 		originstr += "&amount=" + q5.SafeToString(payloadobj.GoodsInfo.ActualPrice)
-		originstr += ":" + constant.NOFITY_GAMESERVER_SALT + nowtimestr
+		originstr += ":" + nowtimestr + constant.NOFITY_GAMESERVER_SALT
 		params := map[string]string{
 			"c":          "Recharge",
 			"a":          "purchaseNotify",