diff --git a/block/blk-lib.c b/block/blk-lib.c
index 1a320d2406b01c073c56f48e8d7867dd067d1510..eec78becb35500d8c5a922c91f5ea94c16336ee9 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -132,7 +132,7 @@ static void bio_batch_end_io(struct bio *bio, int err)
 }
 
 /**
- * blkdev_issue_zeroout generate number of zero filed write bios
+ * blkdev_issue_zeroout - generate number of zero filed write bios
  * @bdev:	blockdev to issue
  * @sector:	start sector
  * @nr_sects:	number of sectors to write