diff --git a/Slack-bot-setup.md b/Slack-bot-setup.md
index 88030b7..34dc705 100644
--- a/Slack-bot-setup.md
+++ b/Slack-bot-setup.md
@@ -14,6 +14,8 @@ Slack's model for bot users and other third-party integrations revolves around S
 Slack Docs: [Bot user tokens](https://api.slack.com/docs/token-types#bot)
 
 ## Create the **classic** Slack App
+> **It's important you create a classic app, slack changed the permission model, make sure you don't switch to granular permissions**
+
 1. Navigate to [your Apps page](https://api.slack.com/apps?new_classic_app=1). You'll need to be logged in with an account that has administrative permissions over the Slack Workspace (server) that you want to sync with Matterbridge.
 
    ![Slack's App page](https://github.com/42wim/matterbridge/blob/master/img/slack-setup-app-page.png)