diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-om5pacv2.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-om5pacv2.c
index 46273eddbad..0480d01e2c1 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-om5pacv2.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-om5pacv2.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/gpio.h>
+#include <linux/version.h>
 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,4,0)
 #include <linux/mdio-gpio.h>
 #else
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb4xx.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb4xx.c
index 9ad7d05c10f..ae0a772d5bc 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb4xx.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb4xx.c
@@ -11,6 +11,7 @@
 
 #include <linux/platform_device.h>
 #include <linux/irq.h>
+#include <linux/version.h>
 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,4,0)
 #include <linux/mdio-gpio.h>
 #else