diff --git a/docs/zh-Hans/docs-nav.json b/docs/zh-Hans/docs-nav.json
index e306114f49..612f74fdc8 100644
--- a/docs/zh-Hans/docs-nav.json
+++ b/docs/zh-Hans/docs-nav.json
@@ -79,7 +79,7 @@
               "path": "Tutorials/Part-2.md"
             },
             {
-              "text": "3:创建,更新和删除书籍",
+              "text": "3: 创建,更新和删除书籍",
               "path": "Tutorials/Part-3.md"
             },
             {