diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
index d6aad0e..d437556 100644
--- a/include/linux/usb/musb.h
+++ b/include/linux/usb/musb.h
@@ -7,6 +7,9 @@
  * key configuration differences between boards.
  */
 
+#ifndef __LINUX_USB_MUSB_H
+#define __LINUX_USB_MUSB_H
+
 /* The USB role is defined by the connector used on the board, so long as
  * standards are being followed.  (Developer boards sometimes won't.)
  */
@@ -101,3 +104,5 @@
 extern int tusb6010_platform_retime(unsigned is_refclk);
 
 #endif	/* OMAP2 */
+
+#endif /* __LINUX_USB_MUSB_H */