diff --git a/_Sidebar.md b/_Sidebar.md
index b4582698..482c9896 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -67,5 +67,6 @@
 - [**IR Extension**](https://github.com/altelch/SonoffIR "IR extension")
 - [**S20 sensor**](https://github.com/arendst/Sonoff-Tasmota/issues/670)
 - [**Wiring additional things to a module**](Expanding-Sonoffs)
+- [**Expand Sonoff 4CH with jack plug**](Expanding-4CH)
 - [**Defining new module types**](Adding-new-Module-types)
 - [**GPIO Locations**](https://github.com/arendst/Sonoff-Tasmota/wiki/GPIO-Locations)