diff --git a/app/cookbook/translate-react.md b/app/cookbook/translate-react.md
index 711732d..48739db 100644
--- a/app/cookbook/translate-react.md
+++ b/app/cookbook/translate-react.md
@@ -60,7 +60,7 @@ const image = <img src={href} />
 const todoList = `<ul>
   ${todos.map((todo) => (
     `<li key="${todo.id}">${todo.text}</li>`
-  ))}
+  ))}.join('')
 </ul>`
 ```