diff --git a/phpBB/includes/acp/acp_permission_roles.php b/phpBB/includes/acp/acp_permission_roles.php
index 08a992957f..d7e7d05d22 100644
--- a/phpBB/includes/acp/acp_permission_roles.php
+++ b/phpBB/includes/acp/acp_permission_roles.php
@@ -332,7 +332,7 @@ class acp_permission_roles
 					{
 						$role_name = (!empty($user->lang[$role_row['role_name']])) ? $user->lang[$role_row['role_name']] : $role_row['role_name'];
 
-						$template->assign_var(array(
+						$template->assign_vars(array(
 							'S_DISPLAY_ROLE_MASK'	=> true,
 							'L_ROLE_ASSIGNED_TO'	=> sprintf($user->lang['ROLE_ASSIGNED_TO'], $role_name))
 						);