diff --git a/frontend/App.tsx b/frontend/App.tsx
index bcbcd5e..6e1bcdb 100644
--- a/frontend/App.tsx
+++ b/frontend/App.tsx
@@ -1,4 +1,4 @@
-import React, { useState, useEffect } from 'react';
+import React, { useState, useEffect, useRef } from 'react';
 import { HybridBackend } from './services/backend.ts';
 
 import { Sidebar } from './components/Sidebar.tsx';