diff --git a/bsp/stm32/stm32f407-atk-explorer/board/Kconfig b/bsp/stm32/stm32f407-atk-explorer/board/Kconfig
index 8f198ecd2fe2d423b05b0d951d336824a1f6d28a..7e36d691f8fd004d9c214df6e37659ce823eb757 100644
--- a/bsp/stm32/stm32f407-atk-explorer/board/Kconfig
+++ b/bsp/stm32/stm32f407-atk-explorer/board/Kconfig
@@ -50,7 +50,6 @@ menu "Onboard Peripheral Drivers"
         bool "Enable Ethernet"
         default n
         select RT_USING_LWIP
-        select PHY_USING_LAN8720A
         select RT_LWIP_USING_HW_CHECKSUM
 
     config BSP_USING_ETH_SAL
@@ -60,6 +59,11 @@ menu "Onboard Peripheral Drivers"
         select RT_USING_SAL
         select SAL_USING_POSIX
 
+	config PHY_USING_LAN8720A
+		bool
+		depends on BSP_USING_ETH
+		default y
+
     config BSP_USING_MPU6050
         bool "Enable MPU6050 (i2c1)"
         default n