diff --git a/arch/sh/kernel/cpu/sh4a/setup-shx3.c b/arch/sh/kernel/cpu/sh4a/setup-shx3.c
index 98f153554deb..610343ea9a84 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-shx3.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-shx3.c
@@ -11,6 +11,7 @@
 #include <linux/init.h>
 #include <linux/serial.h>
 #include <linux/io.h>
+#include <asm/mmzone.h>
 #include <asm/sci.h>
 
 static struct plat_sci_port sci_platform_data[] = {