diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 8b61bcd..b87608b 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -59,6 +59,7 @@
 #include <linux/usbdevice_fs.h>
 #include <asm/uaccess.h>
 
+#include "usb.h"
 #include "hcd.h"
 
 #define MAX_TOPO_LEVEL		6