diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 223f92f4d2cbae44d760407565beab66448735b1..835af8ecbb7c874601351ca4ee4ecc81b6778101 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -9,7 +9,7 @@
 struct request_queue;
 struct scsi_cmnd;
 struct scsi_mode_data;
-
+struct scsi_lun;
 
 /*
  * sdev state: If you alter this, you also need to alter scsi_sysfs.c