diff --git a/doc/Market.py b/doc/Market.py
index c5361288..435e4343 100644
--- a/doc/Market.py
+++ b/doc/Market.py
@@ -77,6 +77,7 @@ class Market(object):
                     ['payment_token_address', '', 'payment_token_address'],
                     ['nonce', '', 'nonce'],
                     ['signature', '', '签名soliditySha3(type, payment_token_address, price, nonce), 签名的replace客户端做处理'],
+                    ['net_id', '', '网络id'],
                 ],
                 'response': [
                     _common.RspHead(),