diff --git a/doc/_common.py b/doc/_common.py
index 3a1592a3..431a9a55 100644
--- a/doc/_common.py
+++ b/doc/_common.py
@@ -1840,8 +1840,8 @@ class RechargeGoods(object):
         self.fields = [
             ['goods_id', '', '商品id(购买时用)'],
             ['diamond', 0, '充值所得钻石'],
-            ['currency', '', '货币地址'],
             ['price', '', '价格'],
+            ['max_buy_times', 0, '充值次数上限'],
         ]
 
 class RechargeHistory(object):