diff --git a/unify/pay_type.go b/unify/pay_type.go
index ee30a33..dbf43b2 100644
--- a/unify/pay_type.go
+++ b/unify/pay_type.go
@@ -41,6 +41,7 @@ type CreatePartnerOrderReq struct {
 	OutTradeNo string      `json:"outTradeNo"`
 	NotifyUrl  string      `json:"notifyUrl"`
 	PartnerId  string      `json:"partnerId"`
+	PayChannel string      `json:"payChannel"`
 	Extra      interface{} `json:"extra"`
 }