diff --git a/etc/inc/dyndns.class b/etc/inc/dyndns.class
index dbcf82cdb5..e383700f55 100644
--- a/etc/inc/dyndns.class
+++ b/etc/inc/dyndns.class
@@ -1,4 +1,4 @@
-<?
+<?php
 	/*
 	 * PHP.updateDNS (pfSense version)
 	 *