diff --git a/src/wp-includes/class-wp-user.php b/src/wp-includes/class-wp-user.php
index 86e778d135..f4896a7617 100644
--- a/src/wp-includes/class-wp-user.php
+++ b/src/wp-includes/class-wp-user.php
@@ -85,6 +85,13 @@ class WP_User {
 	 */
 	public $allcaps = array();
 
+	/**
+	 * @since 2.0.0
+	 * @access public
+	 * @var int
+	 */
+	public $user_level = 0;
+
 	/**
 	 * The filter context applied to user data fields.
 	 *