diff --git a/docs/guides/dns/cloudflared.md b/docs/guides/dns/cloudflared.md
index e241608..b9b6b32 100644
--- a/docs/guides/dns/cloudflared.md
+++ b/docs/guides/dns/cloudflared.md
@@ -239,6 +239,12 @@ sudo chmod +x /etc/cron.weekly/cloudflared-updater
 sudo chown root:root /etc/cron.weekly/cloudflared-updater
 ```
 
+<!-- markdownlint-disable code-block-style -->
+!!! warning
+    Make sure to add shebang `#!/bin/bash` in the beginning of  `/etc/cron.weekly/cloudflared-updater`.
+    Otherwise, the command would not executed.
+<!-- markdownlint-enable code-block-style -->
+
 The system will now attempt to update the cloudflared binary automatically, once per week.
 
 ### Uninstalling `cloudflared`