diff --git a/web/topology_rest_napi.py b/web/topology_rest_napi.py
index 45fc814..e16c197 100755
--- a/web/topology_rest_napi.py
+++ b/web/topology_rest_napi.py
@@ -5,6 +5,7 @@
 from flask import Flask, json, Response, render_template, make_response, request
 
 ## Global Var for ON.Lab local REST ##
+# The GUI can be accessed at <this_host>:9000/onos-topology.html
 RestIP="localhost"
 RestPort=8080
 ONOS_DEFAULT_HOST="localhost" ;# Has to set if LB=False