diff --git a/doc/_common.py b/doc/_common.py
index f8a60368..58a196cf 100644
--- a/doc/_common.py
+++ b/doc/_common.py
@@ -379,6 +379,8 @@ class Goods(object):
             ['limit_type', 0, '0:不限购(这时忽略bought_times、total_buy_times) 1:每日限购 2:周限购 3:累计限购'],
             ['bought_times', 0, '已购买次数'],
             ['total_buy_times', 0, '总的可购买次数'],
+            ['free_type', 0, '免费类型 0:不免费 1:日刷新'],
+            ['free_num', 0, '免费次数'],
         ]
 class NewGoods(object):
     def __init__(self):