diff --git a/Tutorial:-Creating-a-(micro)-service.asciidoc b/Tutorial:-Creating-a-(micro)-service.asciidoc
index d5b739e..cca25cf 100644
--- a/Tutorial:-Creating-a-(micro)-service.asciidoc
+++ b/Tutorial:-Creating-a-(micro)-service.asciidoc
@@ -165,6 +165,7 @@ sudo systemctl start myservicename
 
 === Systemd watchdog
 
+The watchdog automatically restarts the application if a "ping" is not received within 10 seconds. Useful to detect a frozen process. 
 To enable a watchdog, add "WatchdogSec=10s" to the service file.
 
 Install https://github.com/FedericoCeratto/nim-sdnotify[sdnotify client]