diff --git a/source/_integrations/knx.markdown b/source/_integrations/knx.markdown
index f7cc2d9b543..5c48ecda8b1 100644
--- a/source/_integrations/knx.markdown
+++ b/source/_integrations/knx.markdown
@@ -698,6 +698,11 @@ controller_modes:
   description: Overrides the supported controller modes. Provide the supported `hvac_mode` values for your device.
   required: false
   type: list
+default_controller_mode:
+  description: Overrides the default controller mode. Any Home Assistant `hvac_mode` can be configured. This can, for example, be set to "cool" for cooling-only devices.
+  required: false
+  default: "heat"
+  type: string
 on_off_address:
   description: KNX address for switching the climate device on/off. *DPT 1*
   required: false