diff --git a/phpBB/phpbb/auth/provider/oauth/service/exception.php b/phpBB/phpbb/auth/provider/oauth/service/exception.php
index 23d3387951..0c6cba9fb8 100644
--- a/phpBB/phpbb/auth/provider/oauth/service/exception.php
+++ b/phpBB/phpbb/auth/provider/oauth/service/exception.php
@@ -7,6 +7,8 @@
 *
 */
 
+namespace phpbb\auth\provider\oauth\service;
+
 /**
 * @ignore
 */
@@ -20,6 +22,6 @@ if (!defined('IN_PHPBB'))
 *
 * @package auth
 */
-class phpbb_auth_provider_oauth_service_exception extends RuntimeException
+class exception extends \RuntimeException
 {
 }