diff --git a/phpBB/includes/event/dispatcher.php b/phpBB/includes/event/dispatcher.php
index c3b8dc5790..6f7d61c83b 100644
--- a/phpBB/includes/event/dispatcher.php
+++ b/phpBB/includes/event/dispatcher.php
@@ -2,7 +2,7 @@
 /**
 *
 * @package phpBB3
-* @copyright (c) 2011 phpBB Group
+* @copyright (c) Fabien Potencier <fabien@symfony.com>
 * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
 *
 */
@@ -15,6 +15,11 @@ if (!defined('IN_PHPBB'))
 	exit;
 }
 
+/**
+ * This file has been taken from Symfony2 and adjusted for
+ * phpBB's coding standards.
+ */
+
 /**
  * The EventDispatcherInterface is the central point of Symfony's event listener system.
  *
diff --git a/phpBB/includes/event/dispatcher_interface.php b/phpBB/includes/event/dispatcher_interface.php
index 0a4881b3ba..37e6bd4cf1 100644
--- a/phpBB/includes/event/dispatcher_interface.php
+++ b/phpBB/includes/event/dispatcher_interface.php
@@ -2,7 +2,7 @@
 /**
 *
 * @package phpBB3
-* @copyright (c) 2011 phpBB Group
+* @copyright (c) Fabien Potencier <fabien@symfony.com>
 * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
 *
 */
@@ -15,6 +15,11 @@ if (!defined('IN_PHPBB'))
 	exit;
 }
 
+/**
+ * This file has been taken from Symfony2 and adjusted for
+ * phpBB's coding standards.
+ */
+
 /**
  * The EventDispatcherInterface is the central point of Symfony's event listener system.
  * Listeners are registered on the manager and events are dispatched through the
diff --git a/phpBB/includes/event/event.php b/phpBB/includes/event/event.php
index f74370618b..6ee144bc68 100644
--- a/phpBB/includes/event/event.php
+++ b/phpBB/includes/event/event.php
@@ -2,7 +2,7 @@
 /**
 *
 * @package phpBB3
-* @copyright (c) 2011 phpBB Group
+* @copyright (c) Fabien Potencier <fabien@symfony.com>
 * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
 *
 */
@@ -15,6 +15,11 @@ if (!defined('IN_PHPBB'))
 	exit;
 }
 
+/**
+ * This file has been taken from Symfony2 and adjusted for
+ * phpBB's coding standards.
+ */
+
 /**
  * Event is the base class for classes containing event data.
  *
diff --git a/phpBB/includes/event/subscriber_interface.php b/phpBB/includes/event/subscriber_interface.php
index 4e7b23f596..081d4f0210 100644
--- a/phpBB/includes/event/subscriber_interface.php
+++ b/phpBB/includes/event/subscriber_interface.php
@@ -2,7 +2,7 @@
 /**
 *
 * @package phpBB3
-* @copyright (c) 2011 phpBB Group
+* @copyright (c) Fabien Potencier <fabien@symfony.com>
 * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
 *
 */
@@ -15,6 +15,11 @@ if (!defined('IN_PHPBB'))
 	exit;
 }
 
+/**
+ * This file has been taken from Symfony2 and adjusted for
+ * phpBB's coding standards.
+ */
+
 /**
  * An EventSubscriber knows himself what events he is interested in.
  * If an EventSubscriber is added to an EventDispatcherInterface, the manager invokes