diff --git a/docs/_hardware/sonoff_d1_dimmer.md b/docs/_hardware/sonoff_d1_dimmer.md
index ac075b4ee..6bf071356 100644
--- a/docs/_hardware/sonoff_d1_dimmer.md
+++ b/docs/_hardware/sonoff_d1_dimmer.md
@@ -20,6 +20,9 @@ as led lights at 100-240 Volt.
 The device needs either to be flashed with [Tasmota](#tasmota), or you need it
 yo put in [DIY](#diy-mode) mode.
 
+When you add the Sonoff D1 Dimmer, TerrariumPI will automatically detect which
+mode it should run.
+
 ### Tasmota
 
 Total local control with quick setup and updates. Control using MQTT, Web UI,