diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index abc6db9e15b7..386d7c1ca021 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -103,7 +103,7 @@ struct virtblk_req {
 		struct {
 			u8 status;
 			u8 reserved[7];
-			u64 append_sector;
+			__le64 append_sector;
 		} zone_append_in_hdr;
 	};