diff --git a/drivers/ethernet/Kconfig.mcux b/drivers/ethernet/Kconfig.mcux
index 0b9a271e6eb..c0eb11d0189 100644
--- a/drivers/ethernet/Kconfig.mcux
+++ b/drivers/ethernet/Kconfig.mcux
@@ -82,21 +82,21 @@ if ETH_MCUX_0 && ! ETH_MCUX_0_RANDOM_MAC
 config ETH_MCUX_0_MAC3
 	hex "MAC Address Byte 3"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 3 of the MAC address.
 
 config ETH_MCUX_0_MAC4
 	hex "MAC Address Byte 4"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 4 of the MAC address.
 
 config ETH_MCUX_0_MAC5
 	hex "MAC Address Byte 5"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 5 of the MAC address.
 endif
diff --git a/drivers/ethernet/Kconfig.stm32_hal b/drivers/ethernet/Kconfig.stm32_hal
index 1b5e0b3863a..ac545eb1cef 100644
--- a/drivers/ethernet/Kconfig.stm32_hal
+++ b/drivers/ethernet/Kconfig.stm32_hal
@@ -61,21 +61,21 @@ if !ETH_STM32_HAL_RANDOM_MAC
 config ETH_STM32_HAL_MAC3
 	hex "MAC Address Byte 3"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 3 of the MAC address.
 
 config ETH_STM32_HAL_MAC4
 	hex "MAC Address Byte 4"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 4 of the MAC address.
 
 config ETH_STM32_HAL_MAC5
 	hex "MAC Address Byte 5"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 5 of the MAC address.
 endif
diff --git a/drivers/ieee802154/Kconfig b/drivers/ieee802154/Kconfig
index 61a03ab6dff..d543a5f18af 100644
--- a/drivers/ieee802154/Kconfig
+++ b/drivers/ieee802154/Kconfig
@@ -83,28 +83,28 @@ if ! IEEE802154_UPIPE_RANDOM_MAC
 config IEEE802154_UPIPE_MAC4
 	hex "MAC Address Byte 4"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 4 of the MAC address.
 
 config IEEE802154_UPIPE_MAC5
 	hex "MAC Address Byte 5"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 5 of the MAC address.
 
 config IEEE802154_UPIPE_MAC6
 	hex "MAC Address Byte 6"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 6 of the MAC address.
 
 config IEEE802154_UPIPE_MAC7
 	hex "MAC Address Byte 7"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 7 of the MAC address.
 
diff --git a/drivers/ieee802154/Kconfig.cc1200 b/drivers/ieee802154/Kconfig.cc1200
index a74e0280a19..c289c8edc17 100644
--- a/drivers/ieee802154/Kconfig.cc1200
+++ b/drivers/ieee802154/Kconfig.cc1200
@@ -88,28 +88,28 @@ if ! IEEE802154_CC1200_RANDOM_MAC
 config IEEE802154_CC1200_MAC4
 	hex "MAC Address Byte 4"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 4 of the MAC address.
 
 config IEEE802154_CC1200_MAC5
 	hex "MAC Address Byte 5"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 5 of the MAC address.
 
 config IEEE802154_CC1200_MAC6
 	hex "MAC Address Byte 6"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 6 of the MAC address.
 
 config IEEE802154_CC1200_MAC7
 	hex "MAC Address Byte 7"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 7 of the MAC address.
 
diff --git a/drivers/ieee802154/Kconfig.cc2520 b/drivers/ieee802154/Kconfig.cc2520
index 12428116d4a..99b9920ed82 100644
--- a/drivers/ieee802154/Kconfig.cc2520
+++ b/drivers/ieee802154/Kconfig.cc2520
@@ -92,28 +92,28 @@ if ! IEEE802154_CC2520_RANDOM_MAC
 config IEEE802154_CC2520_MAC4
 	hex "MAC Address Byte 4"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 4 of the MAC address.
 
 config IEEE802154_CC2520_MAC5
 	hex "MAC Address Byte 5"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 5 of the MAC address.
 
 config IEEE802154_CC2520_MAC6
 	hex "MAC Address Byte 6"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 6 of the MAC address.
 
 config IEEE802154_CC2520_MAC7
 	hex "MAC Address Byte 7"
 	default 0
-	range 0 ff
+	range 0 0xff
 	help
 	  This is the byte 7 of the MAC address.