diff --git a/ansible/playbooks/fail2ban.yml b/ansible/playbooks/fail2ban.yml
index 15c8b1bea..c4de64919 100644
--- a/ansible/playbooks/fail2ban.yml
+++ b/ansible/playbooks/fail2ban.yml
@@ -47,7 +47,7 @@
           [Definition]
           actionstart =
           actionstop =
-          actionban = curl -X POST -H "Content-Type: application/json" --data "{"text": "🚨 Fail2ban a banni <ip> après trop d'échecs SSH 🚨"}" {{ mattermost_webhook }}
+        actionban = curl -X POST -H "Content-Type: application/json" --data "{\"text\": \"🚨 *$(hostname)* : **Fail2ban** a banni l'IP **<ip>** après trop d'échecs SSH 🚨\"}" {{ mattermost_webhook }}
           actionunban =
       notify: Restart Fail2ban