diff --git a/src/content/reference/react/useEffect.md b/src/content/reference/react/useEffect.md
index 9f992f8a..b9b77cd8 100644
--- a/src/content/reference/react/useEffect.md
+++ b/src/content/reference/react/useEffect.md
@@ -1208,7 +1208,7 @@ export default function App() {
         </button>
       </label>
       {show && <hr />}
-      {show && <ChatRoom />}
+      {show && <ChatRoom roomId={roomId}/>}
     </>
   );
 }