diff --git a/src/wp-admin/includes/class-wp-ms-themes-list-table.php b/src/wp-admin/includes/class-wp-ms-themes-list-table.php
index 985d9bc54a..d3b484fe03 100644
--- a/src/wp-admin/includes/class-wp-ms-themes-list-table.php
+++ b/src/wp-admin/includes/class-wp-ms-themes-list-table.php
@@ -12,6 +12,8 @@ class WP_MS_Themes_List_Table extends WP_List_Table {
 	public $site_id;
 	public $is_site_themes;
 
+	private $has_items;
+
 	/**
 	 * Constructor.
 	 *