diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
index 9679342..5188f71 100644
--- a/drivers/block/cciss.h
+++ b/drivers/block/cciss.h
@@ -30,7 +30,7 @@
 };
 typedef struct _drive_info_struct
 {
- 	__u32   LunID;	
+	unsigned char LunID[8];
 	int 	usage_count;
 	struct request_queue *queue;
 	sector_t nr_blocks;