diff --git a/core/includes/language.inc b/core/includes/language.inc
index 32d1384..46f1535 100644
--- a/core/includes/language.inc
+++ b/core/includes/language.inc
@@ -180,7 +180,8 @@ function language_types_info() {
  *   An array of language type names.
  */
 function language_types_get_configurable() {
-  return Drupal::config('system.language.types')->get('configurable');
+  $configurable = Drupal::config('system.language.types')->get('configurable');
+  return $configurable ? $configurable : array();
 }
 
 /**