diff --git a/modules/opencase_entities/src/Controller/OCOrganisationController.php b/modules/opencase_entities/src/Controller/OCOrganisationController.php
index 7146bb8..59cc89c 100644
--- a/modules/opencase_entities/src/Controller/OCOrganisationController.php
+++ b/modules/opencase_entities/src/Controller/OCOrganisationController.php
@@ -124,7 +124,7 @@ class OCOrganisationController extends ControllerBase implements ContainerInject
           ]));
         }
         else {
-          $link = $oc_organisation->link($date);
+          $link = $oc_organisation->toLink($date)->toString();
         }
 
         $row = [];
diff --git a/modules/opencase_entities/src/Entity/OCOrganisation.php b/modules/opencase_entities/src/Entity/OCOrganisation.php
index 3625f01..40f5563 100644
--- a/modules/opencase_entities/src/Entity/OCOrganisation.php
+++ b/modules/opencase_entities/src/Entity/OCOrganisation.php
@@ -9,6 +9,7 @@ use Drupal\Core\Entity\RevisionableInterface;
 use Drupal\Core\Entity\EntityChangedTrait;
 use Drupal\Core\Entity\EntityPublishedTrait;
 use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Entity\RevisionLogEntityTrait;
 use Drupal\user\UserInterface;
 
 /**
@@ -81,6 +82,7 @@ class OCOrganisation extends EditorialContentEntityBase implements OCOrganisatio
 
   use EntityChangedTrait;
   use EntityPublishedTrait;
+  use RevisionLogEntityTrait;
 
   /**
    * {@inheritdoc}