diff --git a/target/linux/ar71xx/Makefile b/target/linux/ar71xx/Makefile
index e7ca46c7a..93832b560 100644
--- a/target/linux/ar71xx/Makefile
+++ b/target/linux/ar71xx/Makefile
@@ -13,7 +13,7 @@ FEATURES:=usbgadget
 CPU_TYPE:=24kc
 SUBTARGETS:=generic tiny nand mikrotik
 
-KERNEL_PATCHVER:=4.9
+KERNEL_PATCHVER:=4.14
 
 include $(INCLUDE_DIR)/target.mk
 
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-sgr-w500-n85b-v2.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-sgr-w500-n85b-v2.c
index d2749e483..d35821388 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-sgr-w500-n85b-v2.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-sgr-w500-n85b-v2.c
@@ -79,7 +79,7 @@ static struct gpio_keys_button grentech_gpio_keys[] __initdata = {
 static struct mdio_board_info grentech_mdio0_info[] = {
 	{
 		.bus_id = "ag71xx-mdio.0",
-		.phy_addr = 1,
+		.mdio_addr = 1,
 	},
 };