diff --git a/core/modules/field/field.multilingual.inc b/core/modules/field/field.multilingual.inc
index 68493c7..01c1af8 100644
--- a/core/modules/field/field.multilingual.inc
+++ b/core/modules/field/field.multilingual.inc
@@ -92,7 +92,8 @@ function field_available_languages($entity_type, FieldInterface $field) {
 
   if (!isset($field_langcodes[$entity_type][$field_name])) {
     // If the field has language support enabled we retrieve an (alterable) list
-    // of enabled languages, otherwise we return just Language::LANGCODE_NOT_SPECIFIED.
+    // of enabled languages, otherwise we return just
+    // Language::LANGCODE_DEFAULT.
     if (field_is_translatable($entity_type, $field)) {
       $langcodes = field_content_languages();
       // Let other modules alter the available languages.
@@ -101,7 +102,7 @@ function field_available_languages($entity_type, FieldInterface $field) {
       $field_langcodes[$entity_type][$field_name] = $langcodes;
     }
     else {
-      $field_langcodes[$entity_type][$field_name] = array(Language::LANGCODE_NOT_SPECIFIED);
+      $field_langcodes[$entity_type][$field_name] = array(Language::LANGCODE_DEFAULT);
     }
   }