diff --git a/README.md b/README.md
index 90fb5ec43ebc5025f6d3baf61fc1034bcc7de757..14bf0012062772830d48a72272a12f9a2475c073 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,7 @@ systemd-analyze calendar "Sun 04:00:00"
 ## Test
 
 ```
+journalctl --since today --unit vaclab-refresh.service
 systemctl status vaclab-refresh.timer
 systemctl list-timers
 ```