diff --git a/ext/chatbox/cp/ajax.php b/ext/chatbox/cp/ajax.php
index adc757ce..8abc43f0 100644
--- a/ext/chatbox/cp/ajax.php
+++ b/ext/chatbox/cp/ajax.php
@@ -1,4 +1,4 @@
-<?
+<?php
 error_reporting(E_ALL);
 $kioskMode = false;
 
diff --git a/ext/chatbox/cp/index.php b/ext/chatbox/cp/index.php
index 71663ba7..acc20138 100644
--- a/ext/chatbox/cp/index.php
+++ b/ext/chatbox/cp/index.php
@@ -1,4 +1,4 @@
-<?
+<?php
 	include 'ajax.php'; 
 ?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
@@ -33,7 +33,7 @@
 						<span id="login-loading">Loading...</span>
 					</form>
 				</div>
-				<?
+				<?php
 					if (loggedIn()) echo cp();
 				?>
 			</div>
diff --git a/ext/chatbox/include.php b/ext/chatbox/include.php
index d3b18b7e..b26589a4 100644
--- a/ext/chatbox/include.php
+++ b/ext/chatbox/include.php
@@ -1,4 +1,4 @@
-<?
+<?php
 	$null = null;
 	include 'php/filestorage.class.php';
 	include 'preferences.php';
diff --git a/ext/chatbox/php/ajaxcall.class.php b/ext/chatbox/php/ajaxcall.class.php
index 6753830d..7d175b25 100644
--- a/ext/chatbox/php/ajaxcall.class.php
+++ b/ext/chatbox/php/ajaxcall.class.php
@@ -1,4 +1,4 @@
-<?
+<?php
 	class AjaxCall {
 		function AjaxCall($log = null) {
 			header('Content-type: application/json');
diff --git a/ext/chatbox/php/filestorage.class.php b/ext/chatbox/php/filestorage.class.php
index ac462111..35b8ede1 100644
--- a/ext/chatbox/php/filestorage.class.php
+++ b/ext/chatbox/php/filestorage.class.php
@@ -1,4 +1,4 @@
-<?
+<?php
 
 class FileStorage {
 
diff --git a/ext/chatbox/php/functions.php b/ext/chatbox/php/functions.php
index edfd521f..07078599 100644
--- a/ext/chatbox/php/functions.php
+++ b/ext/chatbox/php/functions.php
@@ -1,4 +1,4 @@
-<?
+<?php
 
 	function cookie($name, $data) {
 		return setcookie($name, $data, time() + 60 * 60 * 24 * 30, '/');
diff --git a/ext/chatbox/php/yshout.class.php b/ext/chatbox/php/yshout.class.php
index b02f6689..b5b83e0b 100644
--- a/ext/chatbox/php/yshout.class.php
+++ b/ext/chatbox/php/yshout.class.php
@@ -1,4 +1,4 @@
-<?
+<?php
 
 class YShout {
 
diff --git a/ext/chatbox/preferences.php b/ext/chatbox/preferences.php
index 7d394c85..ef79bbf1 100644
--- a/ext/chatbox/preferences.php
+++ b/ext/chatbox/preferences.php
@@ -1,4 +1,4 @@
-<?
+<?php
 	// If you want to change the nickname, the line below is the one to modify.
 	// Simply set $overrideNickname to whatever variable you want to appear as the nickname,
 	// or leave it null to use the set nicknames.
diff --git a/ext/chatbox/yshout.php b/ext/chatbox/yshout.php
index 8b35afd5..edb35f55 100644
--- a/ext/chatbox/yshout.php
+++ b/ext/chatbox/yshout.php
@@ -1,4 +1,4 @@
-<?
+<?php
 error_reporting(E_ALL);
 ob_start();
 set_error_handler('errorOccurred');
