diff --git a/packages/ui-default/handler.ts b/packages/ui-default/handler.ts
index d470367fd..fd3602f92 100644
--- a/packages/ui-default/handler.ts
+++ b/packages/ui-default/handler.ts
@@ -123,8 +123,7 @@ class UiConstantsHandler extends ResourceHandler {
 }
 
 class LanguageHandler extends ResourceHandler {
-  async all() {
-    let lang = this.session.viewLang || this.user.viewLang;
+  async all({ lang }) {
     if (!global.Hydro.locales[lang]) lang = system.get('server.language');
     this.response.body = `window.LOCALES=${JSON.stringify(global.Hydro.locales[lang])};`;
     this.response.type = 'application/javascript';
diff --git a/packages/ui-default/package.json b/packages/ui-default/package.json
index 6fc598946..8adc69646 100644
--- a/packages/ui-default/package.json
+++ b/packages/ui-default/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.28.0",
+  "version": "4.28.1",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",