diff --git a/2-copy-of-code/lesson-11/chatbot-project-ts/src/main.tsx b/2-copy-of-code/lesson-11/chatbot-project-ts/src/main.tsx
index b9a1a6d..bef5202 100644
--- a/2-copy-of-code/lesson-11/chatbot-project-ts/src/main.tsx
+++ b/2-copy-of-code/lesson-11/chatbot-project-ts/src/main.tsx
@@ -1,9 +1,9 @@
 import { StrictMode } from 'react'
 import { createRoot } from 'react-dom/client'
 import './index.css'
-import App from './App.jsx'
+import App from './App.tsx'
 
-createRoot(document.getElementById('root')).render(
+createRoot(document.getElementById('root')!).render(
   <StrictMode>
     <App />
   </StrictMode>,
diff --git a/2-copy-of-code/lesson-11/chatbot-project-ts/tsconfig.app.json b/2-copy-of-code/lesson-11/chatbot-project-ts/tsconfig.app.json
index c9ccbd4..b7ecba2 100644
--- a/2-copy-of-code/lesson-11/chatbot-project-ts/tsconfig.app.json
+++ b/2-copy-of-code/lesson-11/chatbot-project-ts/tsconfig.app.json
@@ -6,6 +6,7 @@
     "lib": ["ES2020", "DOM", "DOM.Iterable"],
     "module": "ESNext",
     "skipLibCheck": true,
+    "allowJs": true,
 
     /* Bundler mode */
     "moduleResolution": "bundler",