diff --git a/docs/en/Tutorials/Part-1.md b/docs/en/Tutorials/Part-1.md
index f7a98e485d..be812cc162 100644
--- a/docs/en/Tutorials/Part-1.md
+++ b/docs/en/Tutorials/Part-1.md
@@ -869,7 +869,7 @@ Import the `BookState` to the `app.module.ts` in the `src/app` folder and then a
 
 ```js
 // ...
-import { BookState } from './books/state/books.state'; //<== imported BookState ==>
+import { BookState } from './books/state/book.state'; //<== imported BookState ==>
 
 @NgModule({
   imports: [