diff --git a/conf/frpc_full.ini b/conf/frpc_full.ini
index 3a73e43f..5ae97447 100644
--- a/conf/frpc_full.ini
+++ b/conf/frpc_full.ini
@@ -128,11 +128,15 @@ local_port = 22
 use_encryption = false
 use_compression = false
 
+# user of frpc should be same in both stcp server and stcp vistor
 [secret_tcp_vistor]
 # frpc role vistor -> frps -> frpc role server
 role = vistor
 type = stcp
+# the server name you want to vistor
+server_name = secret_tcp
 sk = abcdefg
+# connect this address to vistor stcp server
 bind_addr = 127.0.0.1
 bind_port = 9000
 use_encryption = false