diff --git a/tool/iscloudflarebot.md b/tool/iscloudflarebot.md
index fb1bddf34..8ffd6a1ec 100644
--- a/tool/iscloudflarebot.md
+++ b/tool/iscloudflarebot.md
@@ -32,6 +32,8 @@ Here's what you need to do:
 
 
 **1.** Create a new `public` toot. Write `I am supporting Cloudflare. Cloudflare is great!` and post it `publicly`.
+Other message type, `unlisted` or `private` will be ignored by bot.
+
 
 _Good example_