1 files changed, 4 insertions, 4 deletions
diff --git a/qemu-img.c b/qemu-img.c
index 2351686..046b267 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -2085,13 +2085,13 @@ static int img_convert(int argc, char **argv)
     }
     out_bs = blk_bs(out_blk);
 
-    /* increase bufsectors from the default 4096 (2M) if opt_transfer_length
+    /* increase bufsectors from the default 4096 (2M) if opt_transfer
      * or discard_alignment of the out_bs is greater. Limit to 32768 (16MB)
      * as maximum. */
     bufsectors = MIN(32768,
-                     MAX(bufsectors, MAX(out_bs->bl.opt_transfer_length,
-                                         out_bs->bl.discard_alignment))
-                    );
+                     MAX(bufsectors,
+                         MAX(out_bs->bl.opt_transfer >> BDRV_SECTOR_BITS,
+                             out_bs->bl.discard_alignment)));
 
     if (skip_create) {
         int64_t output_sectors = blk_nb_sectors(out_blk);