diff --git a/src/modules/tls/README b/src/modules/tls/README
index cddc6d7c4aa..69abb45556f 100644
--- a/src/modules/tls/README
+++ b/src/modules/tls/README
@@ -1403,7 +1403,7 @@ modparam("tls", "config", "/usr/local/etc/kamailio/tls.cfg")
   modparam("tls", "xavp_cfg", "tls")
  ...
   $xavp(tls=>server_name) = "kamailio.org";
-  $xavp(tls=>server_id) = "kamailio.org";
+  $xavp(tls[0]=>server_id) = "kamailio.org";
   $du = "sip:kamailio.org:5061;transport=tls";
   route(RELAY);
 ...