diff --git a/etc/systemd/system/make-backup.timer b/etc/systemd/system/make-backup.timer
index 8dc6927..63c90a3 100644
--- a/etc/systemd/system/make-backup.timer
+++ b/etc/systemd/system/make-backup.timer
@@ -2,7 +2,7 @@
 Description=Backup of NAME directory, disaster recovery
 
 [Timer]
-OnCalendar=Mon-Sun *-*-* 04:00:00
+OnCalendar= 04:00
 
 [Install]
 WantedBy=timers.target