diff --git a/_Sidebar.md b/_Sidebar.md
index 57c2ddd..391fa20 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -78,6 +78,7 @@
 * [REST API Docs: User](https://github.com/wekan/wekan/wiki/REST-API-User)
 * [REST API Docs: Boards](https://github.com/wekan/wekan/wiki/REST-API-Boards)
 * [REST API Docs: Cards](https://github.com/wekan/wekan/wiki/REST-API-Cards)
+* [REST API Docs: Custom Fields](https://github.com/wekan/wekan/wiki/REST-API-Custom-Fields)
 * [Python client to REST API](https://github.com/wekan/wekan-python-api-client)
 * [Wekan Sandstorm cards to CSV using Python](https://github.com/wekan/wekan/wiki/Wekan-Sandstorm-cards-to-CSV-using-Python)
 * [Excel and VBA](https://github.com/wekan/wekan/wiki/Excel-and-VBA)