diff --git a/library/Icingadb/Model/Service.php b/library/Icingadb/Model/Service.php
index 8dc877c7..7f24fa1e 100644
--- a/library/Icingadb/Model/Service.php
+++ b/library/Icingadb/Model/Service.php
@@ -111,7 +111,7 @@ class Service extends Model
 
         $relations->hasOne('state', ServiceState::class)->setJoinType('LEFT');
         $relations->hasMany('comment', Comment::class)->setJoinType('LEFT');
-        $relations->hasMany('downtime', Downtime::class);
+        $relations->hasMany('downtime', Downtime::class)->setJoinType('LEFT');
         $relations->hasMany('history', History::class);
         $relations->hasMany('notification', Notification::class);
         $relations->hasMany('notification_history', NotificationHistory::class);