diff --git a/client.siteinfo.go b/client.siteinfo.go
index 71f97d8..987ce43 100644
--- a/client.siteinfo.go
+++ b/client.siteinfo.go
@@ -28,9 +28,17 @@ type SiteInfoRes struct {
  * 2021/06/24
  * GZ
  */
-func GetSiteInfoByHost(master, host string, url ...string) (*SiteInfoRes, error) {
+func GetSiteInfoByHost(host string, params ...string) (*SiteInfoRes, error) {
 
-	conn, err := rpc_server_conn(url...)
+	var url string = ""
+	var master string = ""
+	if len(params) > 1 {
+		master = params[1]
+	}
+	if len(params) > 0 {
+		url = params[0]
+	}
+	conn, err := rpc_server_conn(url)
 	if err != nil {
 		return nil, err
 	}