diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c
index 32263a138aa6ccf9a2a871a859254f2a18df03d9..e0f74191d55312fe4a8fa6548d95d34667604efe 100644
--- a/arch/h8300/kernel/time.c
+++ b/arch/h8300/kernel/time.c
@@ -27,6 +27,7 @@
 #include <linux/profile.h>
 
 #include <asm/io.h>
+#include <asm/irq_regs.h>
 #include <asm/timer.h>
 
 #define	TICK_SIZE (tick_nsec / 1000)