diff --git a/phpBB/includes/acp/acp_main.php b/phpBB/includes/acp/acp_main.php
index e284b29146..2d4cb10c73 100644
--- a/phpBB/includes/acp/acp_main.php
+++ b/phpBB/includes/acp/acp_main.php
@@ -485,7 +485,7 @@ class acp_main
 					'UPGRADE_INSTRUCTIONS'		=> !empty($upgrades_available) ? $user->lang('UPGRADE_INSTRUCTIONS', $upgrades_available['current'], $upgrades_available['announcement']) : false,
 				));
 			}
-			catch (\RuntimeException $e)
+			catch (\phpbb\exception\runtime_exception $e)
 			{
 				$message = call_user_func_array(array($user, 'lang'), array_merge(array($e->getMessage()), $e->get_parameters()));
 				$template->assign_vars(array(