diff --git a/core/modules/language/src/Form/ContentLanguageSettingsForm.php b/core/modules/language/src/Form/ContentLanguageSettingsForm.php
index 88cd485..05e56db 100644
--- a/core/modules/language/src/Form/ContentLanguageSettingsForm.php
+++ b/core/modules/language/src/Form/ContentLanguageSettingsForm.php
@@ -82,7 +82,7 @@ public function buildForm(array $form, FormStateInterface $form_state) {
           $default[$entity_type_id] = $entity_type_id;
         }
         $language_configuration[$entity_type_id][$bundle]['language_show'] = $config->getLanguageShow();
-        $language_configuration[$entity_type_id][$bundle]['default_langcode'] = $config->getDefaultLangcode();
+        $language_configuration[$entity_type_id][$bundle]['langcode'] = $config->getDefaultLangcode();
       }
     }