diff --git a/_Sidebar.md b/_Sidebar.md
index 60db2fa..bb35fdc 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -52,6 +52,7 @@
 * [[Backup Existing Installation]]
 
 **Development**
+* [[JavaScript in EGroupware apps]]
 * [Docker EGroupware development environment](https://github.com/EGroupware/egroupware/tree/master/doc/docker/development)
 * [Example app](https://github.com/EGroupware/example)
 * [[Useful Git Commands]]