diff --git a/drivers/usb/musb/omap3.c b/drivers/usb/musb/omap3.c
index b2e4c32..080bd78 100644
--- a/drivers/usb/musb/omap3.c
+++ b/drivers/usb/musb/omap3.c
@@ -16,6 +16,7 @@
  * ------------------------------------------------------------------------
  */
 
+#include <serial.h>
 #include <asm/omap_common.h>
 #include <twl4030.h>
 #include <twl6030.h>