diff --git a/server/marketserver/api/v1/recharge/recharge.go b/server/marketserver/api/v1/recharge/recharge.go
index 1647c605..c71e56e5 100644
--- a/server/marketserver/api/v1/recharge/recharge.go
+++ b/server/marketserver/api/v1/recharge/recharge.go
@@ -104,7 +104,7 @@ func (this *RechargeApi) Buy(c *gin.Context) {
 		ErrMsg  string                  `json:"errmsg"`
 		Calls   []jccommon.ContractCall `json:"calls"`
 	}{}
-	url := fmt.Sprintf("%s/webapp/index.php", mt.Table.Web3ServiceCluster.RandElement().GetUrl())
+	url := fmt.Sprintf("%s/webapp/index.php", mt.Table.Web3SignCluster.RandElement().GetUrl())
 	f5.GetHttpCliMgr().SendGoStyleRequest(
 		url,
 		params,