diff --git a/drivers/message/fusion/mptsas.h b/drivers/message/fusion/mptsas.h
index 9e0885a..57258b6 100644
--- a/drivers/message/fusion/mptsas.h
+++ b/drivers/message/fusion/mptsas.h
@@ -82,6 +82,7 @@
 	u32			device_info; /* specific bits for devices */
 	u16			slot;		/* enclosure slot id */
 	u64			enclosure_logical_id; /*enclosure address */
+	u8			is_logical_volume; /* is this logical volume */
 };
 
 struct mptsas_hotplug_event {