diff --git a/phpBB/phpbb/content_visibility.php b/phpBB/phpbb/content_visibility.php
index 843881ae41..02338a5c2f 100644
--- a/phpBB/phpbb/content_visibility.php
+++ b/phpBB/phpbb/content_visibility.php
@@ -45,7 +45,7 @@ class content_visibility
 
 	/**
 	* Event dispatcher object
-	* @var \phpbb\event\dispatcher
+	* @var \phpbb\event\dispatcher_interface
 	*/
 	protected $phpbb_dispatcher;
 
@@ -66,7 +66,7 @@ class content_visibility
 	*
 	* @param	\phpbb\auth\auth		$auth	Auth object
 	* @param	\phpbb\config\config	$config	Config object
-	* @param	\phpbb\event\dispatcher	$phpbb_dispatcher	Event dispatcher object
+	* @param	\phpbb\event\dispatcher_interface	$phpbb_dispatcher	Event dispatcher object
 	* @param	\phpbb\db\driver\driver_interface	$db		Database object
 	* @param	\phpbb\user		$user			User object
 	* @param	string		$phpbb_root_path	Root path
@@ -76,7 +76,7 @@ class content_visibility
 	* @param	string		$topics_table		Topics table name
 	* @param	string		$users_table		Users table name
 	*/
-	public function __construct(\phpbb\auth\auth $auth, \phpbb\config\config $config, \phpbb\event\dispatcher $phpbb_dispatcher, \phpbb\db\driver\driver_interface $db, \phpbb\user $user, $phpbb_root_path, $php_ext, $forums_table, $posts_table, $topics_table, $users_table)
+	public function __construct(\phpbb\auth\auth $auth, \phpbb\config\config $config, \phpbb\event\dispatcher_interface $phpbb_dispatcher, \phpbb\db\driver\driver_interface $db, \phpbb\user $user, $phpbb_root_path, $php_ext, $forums_table, $posts_table, $topics_table, $users_table)
 	{
 		$this->auth = $auth;
 		$this->config = $config;
diff --git a/phpBB/phpbb/notification/manager.php b/phpBB/phpbb/notification/manager.php
index aa52eb61d0..db92170dd8 100644
--- a/phpBB/phpbb/notification/manager.php
+++ b/phpBB/phpbb/notification/manager.php
@@ -38,7 +38,7 @@ class manager
 	/** @var \phpbb\config\config */
 	protected $config;
 
-	/** @var \phpbb\event\dispatcher */
+	/** @var \phpbb\event\dispatcher_interface */
 	protected $phpbb_dispatcher;
 
 	/** @var \phpbb\db\driver\driver_interface */
@@ -73,7 +73,7 @@ class manager
 	* @param ContainerInterface $phpbb_container
 	* @param \phpbb\user_loader $user_loader
 	* @param \phpbb\config\config $config
-	* @param \phpbb\event\dispatcher $phpbb_dispatcher
+	* @param \phpbb\event\dispatcher_interface $phpbb_dispatcher
 	* @param \phpbb\db\driver\driver_interface $db
 	* @param \phpbb\cache\service $cache
 	* @param \phpbb\user $user
@@ -85,7 +85,7 @@ class manager
 	*
 	* @return \phpbb\notification\manager
 	*/
-	public function __construct($notification_types, $notification_methods, ContainerInterface $phpbb_container, \phpbb\user_loader $user_loader, \phpbb\config\config $config, \phpbb\event\dispatcher $phpbb_dispatcher, \phpbb\db\driver\driver_interface $db, \phpbb\cache\service $cache, $user, $phpbb_root_path, $php_ext, $notification_types_table, $notifications_table, $user_notifications_table)
+	public function __construct($notification_types, $notification_methods, ContainerInterface $phpbb_container, \phpbb\user_loader $user_loader, \phpbb\config\config $config, \phpbb\event\dispatcher_interface $phpbb_dispatcher, \phpbb\db\driver\driver_interface $db, \phpbb\cache\service $cache, $user, $phpbb_root_path, $php_ext, $notification_types_table, $notifications_table, $user_notifications_table)
 	{
 		$this->notification_types = $notification_types;
 		$this->notification_methods = $notification_methods;