diff --git a/drivers/usb/gadget/f_dfu.h b/drivers/usb/gadget/f_dfu.h
index cc2c455..0c29954 100644
--- a/drivers/usb/gadget/f_dfu.h
+++ b/drivers/usb/gadget/f_dfu.h
@@ -82,4 +82,6 @@
 	__le16				wTransferSize;
 	__le16				bcdDFUVersion;
 } __packed;
+
+#define DFU_POLL_TIMEOUT_MASK           (0xFFFFFFUL)
 #endif /* __F_DFU_H_ */