diff --git a/arch/arm/mach-s3c2410/time.c b/arch/arm/mach-s3c2410/time.c
index c0acfb2ad790..8a00e3c3cd08 100644
--- a/arch/arm/mach-s3c2410/time.c
+++ b/arch/arm/mach-s3c2410/time.c
@@ -38,6 +38,7 @@
 #include <asm/hardware/clock.h>
 
 #include "clock.h"
+#include "cpu.h"
 
 static unsigned long timer_startval;
 static unsigned long timer_usec_ticks;