diff --git a/packages/vjudge/src/index.ts b/packages/vjudge/src/index.ts
index faf233b9a..19e9f0e6d 100644
--- a/packages/vjudge/src/index.ts
+++ b/packages/vjudge/src/index.ts
@@ -185,7 +185,7 @@ class VJudgeService extends Service {
     }
 
     addProvider(type: string, provider: BasicProvider, override = false) {
-        if (process.env.VJUDGE_DEBUG && process.env.VJUDGE_DEBUG !== type) return;
+        if (process.env.VJUDGE_DEBUG && !(`,${process.env.VJUDGE_DEBUG},`).includes(`,${type},`)) return;
         if (!override && this.providers[type]) throw new Error(`duplicate provider ${type}`);
         this.providers[type] = provider;
         for (const account of this.accounts.filter((a) => a.type === type)) {
diff --git a/packages/vjudge/src/providers/uoj.ts b/packages/vjudge/src/providers/uoj.ts
index b40c3c4ad..aad18638f 100644
--- a/packages/vjudge/src/providers/uoj.ts
+++ b/packages/vjudge/src/providers/uoj.ts
@@ -39,7 +39,7 @@ export default class UOJProvider extends BasicFetcher implements IBasicProvider
     }
 
     get loggedIn() {
-        return this.get('/login').then(({ text: html }) => !html.includes('<title>登录 - Universal Online Judge</title>'));
+        return this.get('/login').then(({ text: html }) => !html.includes('<title>登录 - '));
     }
 
     async ensureLogin() {