diff --git a/phpBB/includes/ucp/ucp_pm_compose.php b/phpBB/includes/ucp/ucp_pm_compose.php
index eeb77c3973..e168b643ef 100644
--- a/phpBB/includes/ucp/ucp_pm_compose.php
+++ b/phpBB/includes/ucp/ucp_pm_compose.php
@@ -1444,10 +1444,10 @@ function handle_message_list_actions(&$address_list, &$error, $remove_u, $remove
 	* @event core.message_list_actions
 	* @var	array	address_list		The assoc array with the recipient user/group ids
 	* @var	array	error				The array containing error data
-	* @var	object	remove_u			The variable for removing a user
-	* @var	object	remove_g			The variable for removing a group
-	* @var	object	add_to				The variable for adding a user to the [TO] field
-	* @var	object	add_bcc				The variable for adding a user to the [BCC] field
+	* @var	bool	remove_u			The variable for removing a user
+	* @var	bool	remove_g			The variable for removing a group
+	* @var	bool	add_to				The variable for adding a user to the [TO] field
+	* @var	bool	add_bcc				The variable for adding a user to the [BCC] field
 	* @since 3.2.4-RC1
 	*/
 	$vars = array('address_list', 'error', 'remove_u', 'remove_g', 'add_to', 'add_bcc');