diff --git a/resources/classes/settings.php b/resources/classes/settings.php
index 3a29f81751..9d19e0667f 100644
--- a/resources/classes/settings.php
+++ b/resources/classes/settings.php
@@ -9,7 +9,7 @@
  * @access public
  * @author Mark Crane <mark@fusionpbx.com>
  */
-class settings {
+class settings implements clear_cache {
 
 	/**
 	 * Set in the constructor. String used to load a specific domain. Must be a value domain UUID before sending to the constructor.