diff --git a/subsys/bluetooth/controller/Kconfig.ll_sw_split b/subsys/bluetooth/controller/Kconfig.ll_sw_split
index 3d7ed1f859c..cdbd951f0ab 100644
--- a/subsys/bluetooth/controller/Kconfig.ll_sw_split
+++ b/subsys/bluetooth/controller/Kconfig.ll_sw_split
@@ -865,8 +865,8 @@ config BT_CTLR_NRF_GRTC_AUTOEN_DEFAULT
 
 config BT_CTLR_RADIO_ENABLE_FAST
 	bool "Use tTXEN/RXEN,FAST ramp-up"
-	depends on SOC_COMPATIBLE_NRF52X || SOC_COMPATIBLE_NRF53X || SOC_SERIES_NRF54LX
-	select BT_CTLR_SW_SWITCH_SINGLE_TIMER if SOC_SERIES_NRF54LX
+	depends on SOC_COMPATIBLE_NRF52X || SOC_COMPATIBLE_NRF53X || SOC_COMPATIBLE_NRF54LX
+	select BT_CTLR_SW_SWITCH_SINGLE_TIMER if SOC_COMPATIBLE_NRF54LX
 	default y
 	help
 	  Enable use of fast radio ramp-up mode.
@@ -881,7 +881,7 @@ config BT_CTLR_TIFS_HW
 config BT_CTLR_SW_SWITCH_SINGLE_TIMER
 	bool "Single TIMER tIFS Trx SW switching"
 	depends on (!BT_CTLR_TIFS_HW) && (SOC_COMPATIBLE_NRF52X || SOC_COMPATIBLE_NRF53X || \
-					  SOC_SERIES_NRF54LX)
+					  SOC_COMPATIBLE_NRF54LX)
 	help
 	  Implement the tIFS Trx SW switch with the same TIMER
 	  instance, as the one used for BLE event timing. Requires