diff --git a/src/app.ts b/src/app.ts
index b2769ab..8ffbdbc 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -3,12 +3,16 @@ import 'reflect-metadata';
 import axios from 'axios';
 
 import { initDb } from './backend/services/db.js';
-import { ua } from './backend/services/misskey.js';
+import {config} from './config.js';
+
+export const ua = `Mozilla/5.0 MisskeyTools +https://github.com/shrimpia/misskey-tools Node/${process.version} ${config.uaExtra ?? ''}`;
 
 axios.defaults.headers['User-Agent'] = ua;
 axios.defaults.headers['Content-Type'] = 'application/json';
 axios.defaults.validateStatus = (stat) => stat < 500;
 
+console.log(`Initiailizing axios with UA ${ua}...`);
+
 (async () => {
   await initDb();
   (await import('./backend/services/worker.js')).default();
diff --git a/src/backend/services/misskey.ts b/src/backend/services/misskey.ts
index 3c7fb4e..239354c 100644
--- a/src/backend/services/misskey.ts
+++ b/src/backend/services/misskey.ts
@@ -2,8 +2,6 @@ import axios from 'axios';
 import {printLog} from '../store.js';
 import {delay} from '../utils/delay.js';
 
-export const ua = `Mozilla/5.0 MisskeyTools +https://github.com/shrimpia/misskey-tools Node/${process.version}`;
-
 const RETRY_COUNT = 5;
 
 /**