diff --git a/src/Bundle/ChillActivityBundle/Timeline/TimelineActivityProvider.php b/src/Bundle/ChillActivityBundle/Timeline/TimelineActivityProvider.php
index a4dbdfad3..a1c6b6c65 100644
--- a/src/Bundle/ChillActivityBundle/Timeline/TimelineActivityProvider.php
+++ b/src/Bundle/ChillActivityBundle/Timeline/TimelineActivityProvider.php
@@ -117,7 +117,7 @@ class TimelineActivityProvider implements TimelineProviderInterface
     private function getWhereClauseForPerson(Person $person)
     {
         $parameters = [];
-        $metadataActivity = $this->em->getClassMetadata('ChillActivityBundle:Activity');
+        $metadataActivity = $this->em->getClassMetadata(Activity::class);
         $associationMapping = $metadataActivity->getAssociationMapping('person');
         $role = new Role('CHILL_ACTIVITY_SEE');
         $reachableScopes =  $this->helper->getReachableScopes($this->user,
@@ -154,8 +154,8 @@ class TimelineActivityProvider implements TimelineProviderInterface
     
     private function getFromClausePerson()
     {
-        $metadataActivity = $this->em->getClassMetadata('ChillActivityBundle:Activity');
-        $metadataPerson = $this->em->getClassMetadata('ChillPersonBundle:Person');
+        $metadataActivity = $this->em->getClassMetadata(Activity::class);
+        $metadataPerson = $this->em->getClassMetadata(Person::class);
         $associationMapping = $metadataActivity->getAssociationMapping('person');
         
         return $metadataActivity->getTableName().' JOIN '
@@ -173,7 +173,7 @@ class TimelineActivityProvider implements TimelineProviderInterface
      */
     public function getEntities(array $ids)
     {
-        $activities = $this->em->getRepository('ChillActivityBundle:Activity')
+        $activities = $this->em->getRepository(Activity::class)
               ->findBy(array('id' => $ids));
         
         $result = array();
diff --git a/src/Bundle/ChillPersonBundle/translations/messages.fr.yml b/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
index e9befc441..1912cdaf2 100644
--- a/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
+++ b/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
@@ -179,6 +179,7 @@ See accompanying periods: Voir les périodes d'accompagnement
 See accompanying period: Voir cette période d'accompagnement
 Referrer: Référent
 
+Participants: Personnes impliquées
 # pickAPersonType
 Pick a person: Choisir une personne