diff --git a/core/modules/layout_builder/src/Routing/LayoutTempstoreParamConverter.php b/core/modules/layout_builder/src/Routing/LayoutTempstoreParamConverter.php
index a1d5fc9140..48b5908d98 100644
--- a/core/modules/layout_builder/src/Routing/LayoutTempstoreParamConverter.php
+++ b/core/modules/layout_builder/src/Routing/LayoutTempstoreParamConverter.php
@@ -5,6 +5,7 @@
 use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\ParamConverter\EntityConverter;
 use Drupal\Core\ParamConverter\ParamConverterInterface;
+use Drupal\layout_builder\Entity\LayoutEntity;
 use Drupal\layout_builder\LayoutTempstoreRepositoryInterface;
 use Symfony\Component\Routing\Route;
 
@@ -40,7 +41,7 @@ public function __construct(EntityManagerInterface $entity_manager, LayoutTempst
    */
   public function convert($value, $definition, $name, array $defaults) {
     if ($entity = parent::convert($value, $definition, $name, $defaults)) {
-      return $this->layoutTempstoreRepository->get($entity);
+      return $this->layoutTempstoreRepository->get(new LayoutEntity($entity));
     }
   }