diff --git a/docs/ko/mkdocs.yml b/docs/ko/mkdocs.yml
index 60cf7d30ae754..0d0684db82d30 100644
--- a/docs/ko/mkdocs.yml
+++ b/docs/ko/mkdocs.yml
@@ -66,6 +66,7 @@ nav:
   - tutorial/response-status-code.md
   - tutorial/request-files.md
   - tutorial/request-forms-and-files.md
+  - tutorial/encoder.md
 markdown_extensions:
 - toc:
     permalink: true