diff --git a/src/wp-includes/comment.php b/src/wp-includes/comment.php
index a81755d8c9..321529af40 100644
--- a/src/wp-includes/comment.php
+++ b/src/wp-includes/comment.php
@@ -259,6 +259,16 @@ class WP_Comment_Query {
 	 */
 	public $date_query = false;
 
+	/**
+	 * @var array
+	 */
+	public $query_vars;
+
+	/**
+	 * @var array
+	 */
+	public $comments;
+
 	/**
 	 * Make private/protected methods readable for backwards compatibility.
 	 *