diff --git a/core/modules/locale/src/LocaleConfigManager.php b/core/modules/locale/src/LocaleConfigManager.php
index 17eafb4..028e75a 100644
--- a/core/modules/locale/src/LocaleConfigManager.php
+++ b/core/modules/locale/src/LocaleConfigManager.php
@@ -493,7 +493,7 @@ public function getDefaultConfigLangcode($name) {
     // configurable_language entities are a special case since they can be
     // translated regardless of whether they are shipped if they in the standard
     // language list.
-    $config_entity_type = $this->configManager;
+    $config_entity_type = $this->configManager->getEntityTypeIdByName($name);
     if (!$config_entity_type || $config_entity_type === 'configurable_language'
       || !empty($this->configFactory->get($name)->get('_core.default_config_hash'))
     ) {