diff --git a/src/wp-includes/comment.php b/src/wp-includes/comment.php
index 70d7a488dd..4669aa41c8 100644
--- a/src/wp-includes/comment.php
+++ b/src/wp-includes/comment.php
@@ -3596,7 +3596,7 @@ function wp_handle_comment_submission( $comment_data ) {
 		'comment_author_url',
 		'comment_content',
 		'comment_type',
-		'comment_parent',
+		'comment_parent'
 	);
 
 	/**