diff --git a/manifests/site.pp b/manifests/site.pp
index 0a79a2f..2a1fe3e 100644
--- a/manifests/site.pp
+++ b/manifests/site.pp
@@ -17,5 +17,6 @@ define bup::site(
     monthday => $cron_monthday,
     month    => $cron_month,
     command  => "tar -X /etc/bup-excludes -cPf - / | bup split -r ${backup_user}@${backup_server}: -n root -q",
+    require  => Package['bup'],
   }
 }