diff --git a/arch/arm/mach-omap1/serial.c b/arch/arm/mach-omap1/serial.c
index c7f590645774..19ea9842acc1 100644
--- a/arch/arm/mach-omap1/serial.c
+++ b/arch/arm/mach-omap1/serial.c
@@ -19,6 +19,7 @@
 
 #include <asm/mach-types.h>
 
+#include "common.h"
 #include "serial.h"
 #include "mux.h"
 #include "pm.h"