diff --git a/block.c b/block.c
index 25b03dd07a..09f8aad403 100644
--- a/block.c
+++ b/block.c
@@ -3011,11 +3011,11 @@ static int coroutine_fn bdrv_co_io_em(BlockDriverState *bs, int64_t sector_num,
     BlockDriverAIOCB *acb;
 
     if (is_write) {
-        acb = bdrv_aio_writev(bs, sector_num, iov, nb_sectors,
-                              bdrv_co_io_em_complete, &co);
+        acb = bs->drv->bdrv_aio_writev(bs, sector_num, iov, nb_sectors,
+                                       bdrv_co_io_em_complete, &co);
     } else {
-        acb = bdrv_aio_readv(bs, sector_num, iov, nb_sectors,
-                             bdrv_co_io_em_complete, &co);
+        acb = bs->drv->bdrv_aio_readv(bs, sector_num, iov, nb_sectors,
+                                      bdrv_co_io_em_complete, &co);
     }
 
     trace_bdrv_co_io_em(bs, sector_num, nb_sectors, is_write, acb);