diff --git a/pbs-zfs-daily.sh b/pbs-zfs-daily.sh
index 44a6875..cf2aedc 100644
--- a/pbs-zfs-daily.sh
+++ b/pbs-zfs-daily.sh
@@ -38,7 +38,7 @@ echo "zfs_auto_snapshot_label=$ZPUSHLABEL" >> /etc/bashclub/$SOURCEHOST.conf
 echo "zfs_auto_snapshot_engine=internal"  >> /etc/bashclub/$SOURCEHOST.conf
 echo "checkzfs_disabled=0" >> /etc/bashclub/$SOURCEHOST.conf
 echo "checkzfs_local=0" >> /etc/bashclub/$SOURCEHOST.conf
-echo "checkzfs_prefix=miyagi-$SOURCEHOSTNAME-$ZFSROOT-$HOSTNAME-$ZFSTRGT" >> /etc/bashclub/$SOURCEHOST.conf
+echo "checkzfs_prefix=miyagi-$SOURCEHOSTNAME-$HOSTNAME-$ZPUSHTAG" >> /etc/bashclub/$SOURCEHOST.conf
 echo "checkzfs_max_age=1500,2000" >> /etc/bashclub/$SOURCEHOST.conf
 echo "checkzfs_max_snapshot_count=180,200" >> /etc/bashclub/$SOURCEHOST.conf
 echo "checkzfs_spool=1" >> /etc/bashclub/$SOURCEHOST.conf