diff --git a/app/store/lists/cart/CartList.php b/app/store/lists/cart/CartList.php
index 47ab41107..7c06f7e76 100644
--- a/app/store/lists/cart/CartList.php
+++ b/app/store/lists/cart/CartList.php
@@ -107,6 +107,7 @@ 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) . '元可获得10%品牌礼品券';