diff --git a/src/Bundle/ChillActivityBundle/Timeline/TimelineActivityProvider.php b/src/Bundle/ChillActivityBundle/Timeline/TimelineActivityProvider.php
index fb0a5c45c..041978421 100644
--- a/src/Bundle/ChillActivityBundle/Timeline/TimelineActivityProvider.php
+++ b/src/Bundle/ChillActivityBundle/Timeline/TimelineActivityProvider.php
@@ -79,8 +79,7 @@ class TimelineActivityProvider implements TimelineProviderInterface
         $metadataActivity = $this->em->getClassMetadata(Activity::class);
         $associationMapping = $metadataActivity->getAssociationMapping('person');
         $role = new Role('CHILL_ACTIVITY_SEE');
-        $reachableScopes =  $this->helper->getReachableScopes($this->user,
-            $role, $person->getCenter());
+        $reachableScopes =  $this->helper->getReachableScopes($this->user, $role->getRole(), $person->getCenter());
         $whereClause = sprintf(' {activity.person_id} = ? AND {activity.scope_id} IN ({scopes_ids}) ');
         $scopes_ids = [];
 
diff --git a/src/Bundle/ChillPersonBundle/Entity/Person.php b/src/Bundle/ChillPersonBundle/Entity/Person.php
index df2f8ac51..1c2842b6a 100644
--- a/src/Bundle/ChillPersonBundle/Entity/Person.php
+++ b/src/Bundle/ChillPersonBundle/Entity/Person.php
@@ -63,7 +63,7 @@ class Person implements HasCenterInterface, TrackCreationInterface, TrackUpdateI
      * @ORM\Column(name="id", type="integer")
      * @ORM\GeneratedValue(strategy="AUTO")
      */
-    private int $id;
+    private ?int $id = null;
 
     /**
      * The person's first name