diff --git a/app/api/lists/order/CartList.php b/app/api/lists/order/CartList.php
index d46a2133..e71bcf78 100644
--- a/app/api/lists/order/CartList.php
+++ b/app/api/lists/order/CartList.php
@@ -112,6 +112,7 @@ class CartList extends BaseAdminDataLists implements ListsSearchInterface, Lists
             'pay_price' => $this->total_price
         ];
         if($this->off_activity==1){
+            $this->activity_price =  $this->total_price;
             $data['pay_price']=$this->activity_price;
             if($this->activity_price<500){
                 $data['msg']='还差'.bcsub(500,$this->activity_price,2).'即可获得10%的品牌礼品兑换券,可到线下门店兑换礼品。';