diff --git a/core/modules/comment/comment.module b/core/modules/comment/comment.module
index bb3e86e..604111b 100644
--- a/core/modules/comment/comment.module
+++ b/core/modules/comment/comment.module
@@ -389,7 +389,7 @@ function _comment_body_field_create($info) {
 
     // Assign widget settings for the 'default' form mode.
     entity_get_form_display('comment', 'comment_node_' . $info->type, 'default')
-      ->setComponent($field['field_name'], array(
+      ->setComponent('comment_body', array(
         'type' => 'text_textarea',
       ))
       ->save();