diff --git a/dts/common/nordic/nrf54l20.dtsi b/dts/common/nordic/nrf54l20.dtsi
index 7fae04a0e31..8b0dbb8d253 100644
--- a/dts/common/nordic/nrf54l20.dtsi
+++ b/dts/common/nordic/nrf54l20.dtsi
@@ -240,6 +240,7 @@
 				ieee802154-supported;
 				ble-2mbps-supported;
 				ble-coded-phy-supported;
+				cs-supported;
 
 				ieee802154: ieee802154 {
 					compatible = "nordic,nrf-ieee802154";