diff --git a/rear.cron b/rear.cron
index b0fbf27..b4dbce1 100644
--- a/rear.cron
+++ b/rear.cron
@@ -1,4 +1,4 @@
 # cronjob for ReaR
 # periodically check if disk layout has changed and update
 # the rescue image
-30 1 * * * root /usr/sbin/rear checklayout || /usr/sbin/rear mkrescue
+30 1 * * * root test -f /var/lib/rear/layout/disklayout.conf && /usr/sbin/rear checklayout || /usr/sbin/rear mkrescue