diff --git a/packages/ui-default/pages/problem_detail.page.jsx b/packages/ui-default/pages/problem_detail.page.jsx
index b4c05f2ed..2b4902ae5 100644
--- a/packages/ui-default/pages/problem_detail.page.jsx
+++ b/packages/ui-default/pages/problem_detail.page.jsx
@@ -2,7 +2,7 @@ import { getScoreColor } from '@hydrooj/utils/lib/status';
 import $ from 'jquery';
 import yaml from 'js-yaml';
 import React from 'react';
-import {createRoot} from 'react-dom/client';
+import { createRoot } from 'react-dom/client';
 import Notification from 'vj/components/notification';
 import { downloadProblemSet } from 'vj/components/zipDownloader';
 import { NamedPage } from 'vj/misc/Page';