diff --git a/src/Bundle/ChillCalendarBundle/Entity/Calendar.php b/src/Bundle/ChillCalendarBundle/Entity/Calendar.php
index af64024a5..75761598d 100644
--- a/src/Bundle/ChillCalendarBundle/Entity/Calendar.php
+++ b/src/Bundle/ChillCalendarBundle/Entity/Calendar.php
@@ -83,7 +83,7 @@ class Calendar
      * @ORM\JoinTable(name="chill_calendar.calendar_to_invites")
      * @Groups({"read"})
      */
-    private ?Collection $invites = null;
+    private Collection $invites;
 
     /**
      * @ORM\Embedded(class=CommentEmbeddable::class, columnPrefix="comment_")