diff --git a/core/modules/comment/src/Entity/Comment.php b/core/modules/comment/src/Entity/Comment.php
index 9c238f6..1164756 100644
--- a/core/modules/comment/src/Entity/Comment.php
+++ b/core/modules/comment/src/Entity/Comment.php
@@ -289,9 +289,7 @@ public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
     $fields['field_name'] = FieldDefinition::create('string')
       ->setLabel(t('Comment field name'))
       ->setDescription(t('The field name through which this comment was added.'))
-      ->setSetting('max_length', 32)
-      ->setComputed(TRUE)
-      ->setCustomStorage(TRUE);
+      ->setSetting('max_length', 32);
 
     return $fields;
   }