diff --git a/modules/opd_presentations/opd_presentations.module b/modules/opd_presentations/opd_presentations.module
index d1244ef41..e2382f26a 100644
--- a/modules/opd_presentations/opd_presentations.module
+++ b/modules/opd_presentations/opd_presentations.module
@@ -12,7 +12,7 @@ use Drupal\opd_presentations\Entity\Presentation;
  */
 function opd_presentations_entity_bundle_info_alter(array &$bundles): void {
   if (isset($bundles['node'])) {
-    $bundles['node']['presentation']['class'] = Presentation::class;
+    $bundles['node'][Presentation::NODE_TYPE]['class'] = Presentation::class;
   }
 
   if (isset($bundles['paragraph'])) {
diff --git a/modules/opd_presentations/src/Entity/Presentation.php b/modules/opd_presentations/src/Entity/Presentation.php
index ba5b91724..f541626c9 100644
--- a/modules/opd_presentations/src/Entity/Presentation.php
+++ b/modules/opd_presentations/src/Entity/Presentation.php
@@ -12,6 +12,8 @@ use Drupal\opd_presentations\Entity\Event;
 
 final class Presentation extends Node implements NodeInterface {
 
+  public const NODE_TYPE = 'presentation';
+
   public function getPastEvents(): EventCollection {
     $events = $this->get('field_events')->referencedEntities();
 
diff --git a/modules/opd_presentations/tests/src/Traits/PresentationCreationTrait.php b/modules/opd_presentations/tests/src/Traits/PresentationCreationTrait.php
index 452e1db4f..d1a9316ee 100644
--- a/modules/opd_presentations/tests/src/Traits/PresentationCreationTrait.php
+++ b/modules/opd_presentations/tests/src/Traits/PresentationCreationTrait.php
@@ -21,7 +21,7 @@ trait PresentationCreationTrait {
   private function createPresentation(array $events): Presentation {
     $presentation = $this->createNode([
       'field_events' => $events,
-      'type' => 'presentation',
+      'type' => Presentation::NODE_TYPE,
     ]);
 
     assert($presentation instanceof Presentation);