diff --git a/doc/Shop.py b/doc/Shop.py
index 1e7140a0..974e0e63 100644
--- a/doc/Shop.py
+++ b/doc/Shop.py
@@ -109,9 +109,7 @@ class Shop(object):
                 ],
                 'response': [
                     _common.RspHead(),
-                    ['ret', _common.Union([
-                        [_common.ShopTrans(), '链上交易结果'],
-                    ]), '购买结果'],
+                    ['block_chain', [_common.ShopTrans()], '链上交易结果'],
                     ['award', _common.Award(), '奖励信息'],
                     ['property_chg', _common.PropertyChg(), '属性变更'],
                     ['goods_chg', _common.NewGoods(), '购买后更新商品的最新信息(可能为null客户端需要做容错处理)'],
diff --git a/webapp/controller/ShopController.class.php b/webapp/controller/ShopController.class.php
index bce9378d..5cbf5db4 100644
--- a/webapp/controller/ShopController.class.php
+++ b/webapp/controller/ShopController.class.php
@@ -1034,6 +1034,7 @@ class ShopController extends BaseAuthedController
 
     public function buyGoodsDS()
     {
+        $account = $this->_getAccountId();
         $address = $this->_getAddress();
         if (empty($address)) {
             $this->_rspErr(2, 'address is empty');
@@ -1063,7 +1064,7 @@ class ShopController extends BaseAuthedController
             return;
         }
 
-        if ($row['address'] != $address) {
+        if ($row['address'] != $account) {
             $this->_rspErr(2, 'address is invalid');
             return;
         }