diff --git a/core/modules/jsonld/lib/Drupal/jsonld/JsonldEntityNormalizer.php b/core/modules/jsonld/lib/Drupal/jsonld/JsonldEntityNormalizer.php
index 5fb5afb..c466952 100644
--- a/core/modules/jsonld/lib/Drupal/jsonld/JsonldEntityNormalizer.php
+++ b/core/modules/jsonld/lib/Drupal/jsonld/JsonldEntityNormalizer.php
@@ -57,7 +57,7 @@ public function denormalize($data, $class, $format = null) {
     );
     // If the data specifies a default language, use it to create the entity.
     if (isset($data['langcode'])) {
-      $values['langcode'] = $data['langcode'];
+      $values['langcode'] = $data['langcode'][LANGUAGE_NOT_SPECIFIED][0]['value'];
     }
     // Otherwise, if the default language is not specified but there are
     // translations of field values, explicitly set the entity's default
diff --git a/core/modules/jsonld/tests/modules/jsonld_test/jsonld_test.routing.yml b/core/modules/jsonld/tests/modules/jsonld_test/jsonld_test.routing.yml
index d02494d..e1584f5 100644
--- a/core/modules/jsonld/tests/modules/jsonld_test/jsonld_test.routing.yml
+++ b/core/modules/jsonld/tests/modules/jsonld_test/jsonld_test.routing.yml
@@ -2,3 +2,5 @@ jsonld_test_bundle_schema:
   pattern: 'jsonld-test/content-staging/entity_test/entity_test'
   defaults:
     _controller: 'Drupal\jsonld_test\MockSiteSchema::bundle'
+  requirements:
+    _access: 'TRUE'