diff --git a/src/Infrastructure/ORM/Notification/Repository/Notification.php b/src/Infrastructure/ORM/Notification/Repository/Notification.php
index 6969c56301987ba1ba7421db69346ad141195c49..cef850c2950b663b779ee765c79ff66971191138 100644
--- a/src/Infrastructure/ORM/Notification/Repository/Notification.php
+++ b/src/Infrastructure/ORM/Notification/Repository/Notification.php
@@ -137,11 +137,11 @@ class Notification extends CRUDRepository implements Repository\Notification
         }
 
         // If notifications are active, delete old notifications
-        
+
         $qb = $this->getManager()->createQueryBuilder();
         $qb->where('o.createdAt < :date');
         $prevDate = new \DateTime();
-        $prevDate->modify('-'.$this->saveNotificationsDuration);
+        $prevDate->modify('-' . $this->saveNotificationsDuration);
         $qb->setParameter('date', $prevDate);
         $qb->delete('App\Domain\Notification\Model\NotificationUser as o');
         $qb->getQuery()->execute();
@@ -149,7 +149,7 @@ class Notification extends CRUDRepository implements Repository\Notification
         $qb = $this->getManager()->createQueryBuilder();
         $qb->where('o.createdAt < :date');
         $prevDate = new \DateTime();
-        $prevDate->modify('-'.$this->saveNotificationsDuration);
+        $prevDate->modify('-' . $this->saveNotificationsDuration);
         $qb->setParameter('date', $prevDate);
         $qb->delete('App\Domain\Notification\Model\Notification as o');
         $qb->getQuery()->execute();