diff --git a/etc/zfs-auto-snapshot.cron.daily b/etc/zfs-auto-snapshot.cron.daily
index 7390399..89a6a13 100644
--- a/etc/zfs-auto-snapshot.cron.daily
+++ b/etc/zfs-auto-snapshot.cron.daily
@@ -2,4 +2,4 @@
 
 # Only call zfs-auto-snapshot if it's available
 which zfs-auto-snapshot > /dev/null && \
-     zfs-auto-snapshot --quiet --syslog --label=daily --keep=31 //
+     exec zfs-auto-snapshot --quiet --syslog --label=daily --keep=31 //
diff --git a/etc/zfs-auto-snapshot.cron.hourly b/etc/zfs-auto-snapshot.cron.hourly
index 4e15d04..b558269 100644
--- a/etc/zfs-auto-snapshot.cron.hourly
+++ b/etc/zfs-auto-snapshot.cron.hourly
@@ -2,4 +2,4 @@
 
 # Only call zfs-auto-snapshot if it's available
 which zfs-auto-snapshot > /dev/null && \
-     zfs-auto-snapshot --quiet --syslog --label=hourly --keep=24 //
+     exec zfs-auto-snapshot --quiet --syslog --label=hourly --keep=24 //
diff --git a/etc/zfs-auto-snapshot.cron.monthly b/etc/zfs-auto-snapshot.cron.monthly
index 57e2050..4b1ad17 100644
--- a/etc/zfs-auto-snapshot.cron.monthly
+++ b/etc/zfs-auto-snapshot.cron.monthly
@@ -2,4 +2,4 @@
 
 # Only call zfs-auto-snapshot if it's available
 which zfs-auto-snapshot > /dev/null && \
-     zfs-auto-snapshot --quiet --syslog --label=monthly --keep=12 //
+     exec zfs-auto-snapshot --quiet --syslog --label=monthly --keep=12 //
diff --git a/etc/zfs-auto-snapshot.cron.weekly b/etc/zfs-auto-snapshot.cron.weekly
index f2d98d0..574a5e2 100644
--- a/etc/zfs-auto-snapshot.cron.weekly
+++ b/etc/zfs-auto-snapshot.cron.weekly
@@ -2,4 +2,4 @@
 
 # Only call zfs-auto-snapshot if it's available
 which zfs-auto-snapshot > /dev/null && \
-     zfs-auto-snapshot --quiet --syslog --label=weekly --keep=8 //
+     exec zfs-auto-snapshot --quiet --syslog --label=weekly --keep=8 //