diff --git a/app.json b/app.json
index b476b8596af..002ebd01d65 100644
--- a/app.json
+++ b/app.json
@@ -7,7 +7,7 @@
   "env": {
     "BUILDPACK_URL": "https://github.com/AdmitHub/meteor-buildpack-horse.git",
     "ROOT_URL": {
-      "description": "The full URL of your Rocket.Chat app (by default, http://appname.herokuapp.com)."
+      "description": "The full URL of your Rocket.Chat app (https://<App Name>.herokuapp.com)."
     },
     "AWS_ACCESS_KEY_ID": {
       "description": "Your AWS Access Key Id"