diff --git a/conf/example/cron.conf b/conf/example/cron.conf
index 4214d87..a755ed8 100644
--- a/conf/example/cron.conf
+++ b/conf/example/cron.conf
@@ -1,2 +1,2 @@
-0 0 * * * /usr/bin/bash /home/pi/lot_manager/bash/delete_than.sh
+*/15 * * * * /usr/bin/bash /home/pi/lot_manager/bash/delete_than.sh
 */15 * * * * /usr/bin/bash /home/pi/lot_manager/bash/cron_delete_mp4.sh