--- etc/periodic/weekly/000.zfs-snapshot.orig	2011-12-08 09:54:29.892546280 +0200
+++ etc/periodic/weekly/000.zfs-snapshot	2011-12-08 09:54:46.735546024 +0200
@@ -18,7 +18,7 @@
     keep=7
 fi
 
-case "$daily_zfs_snapshot_enable" in
+case "$weekly_zfs_snapshot_enable" in
     [Yy][Ee][Ss])
         . /etc/periodic/zfs-snapshot
         do_snapshots "$pools" $keep 'weekly'
