diff --git a/scripts/chroot-setup.sh b/scripts/chroot-setup.sh
index 9b2c5da..bf75911 100644
--- a/scripts/chroot-setup.sh
+++ b/scripts/chroot-setup.sh
@@ -14,7 +14,7 @@ ROOT_CRONTAB="# remove cache every 2 hours and update local db
 0 */6 * * * updatedb > /dev/null
 
 # zfs scrub
-0 0 1,15 * * /usr/bin/zpool scrub > /dev/null
+0 12 1,15 * * /usr/bin/zpool scrub > /dev/null
 "
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