diff --git a/tests/phpunit/includes/object-cache.php b/tests/phpunit/includes/object-cache.php
index ad7920f731..e1404188f3 100644
--- a/tests/phpunit/includes/object-cache.php
+++ b/tests/phpunit/includes/object-cache.php
@@ -913,6 +913,20 @@ class WP_Object_Cache {
 	 */
 	public $blog_prefix = '';
 
+	/**
+	 * Thirty days in seconds.
+	 *
+	 * @var int
+	 */
+	public $thirty_days;
+
+	/**
+	 * Current unix time stamp.
+	 *
+	 * @var int
+	 */
+	public $now;
+
 	/**
 	 * Instantiates the Memcached class.
 	 *