diff --git a/docs/zh-Hans/Tutorials/Part-1.md b/docs/zh-Hans/Tutorials/Part-1.md
index 927463e100..99f9939f30 100644
--- a/docs/zh-Hans/Tutorials/Part-1.md
+++ b/docs/zh-Hans/Tutorials/Part-1.md
@@ -290,7 +290,7 @@ namespace Acme.BookStore
 using System;
 using Volo.Abp.Application.Dtos;
 
-namespace Acme.BookStore
+namespace Acme.BookStore.Books
 {
     public class BookDto : AuditedEntityDto<Guid>
     {