diff --git a/lib/Cron/Workers/StatsNotifications/Scheduler.php b/lib/Cron/Workers/StatsNotifications/Scheduler.php
index ba094f17f4..d140a61ad3 100644
--- a/lib/Cron/Workers/StatsNotifications/Scheduler.php
+++ b/lib/Cron/Workers/StatsNotifications/Scheduler.php
@@ -67,7 +67,7 @@ class Scheduler {
   }
 
   private function isTaskScheduled($newsletter_id) {
-    $existing = ScheduledTask::table_alias('tasks')
+    $existing = ScheduledTask::tableAlias('tasks')
       ->join(StatsNotification::$_table, 'tasks.id = notification.task_id', 'notification')
       ->where('tasks.type', Worker::TASK_TYPE)
       ->where('notification.newsletter_id', $newsletter_id)
diff --git a/lib/Models/Model.php b/lib/Models/Model.php
index 4de13f7211..f3bfbe5324 100644
--- a/lib/Models/Model.php
+++ b/lib/Models/Model.php
@@ -62,6 +62,7 @@ if(!defined('ABSPATH')) exit;
  * @method $this whereIn($column_name, $values)
  * @method static $this whereIn($column_name, $values)
  * @method $this whereNotIn($column_name, $values)
+ * @method static $this whereNotIn($column_name, $values)
  * @method $this whereNull($column_name)
  * @method static $this whereNull($column_name)
  * @method $this whereNotNull($column_name)