diff --git a/block.c b/block.c
index cde41295bd..73c26ec410 100644
--- a/block.c
+++ b/block.c
@@ -1689,10 +1689,6 @@ static int multiwrite_merge(BlockDriverState *bs, BlockRequest *reqs,
             merge = bs->drv->bdrv_merge_requests(bs, &reqs[outidx], &reqs[i]);
         }
 
-        if (reqs[outidx].qiov->niov + reqs[i].qiov->niov + 1 > IOV_MAX) {
-            merge = 0;
-        }
-
         if (merge) {
             size_t size;
             QEMUIOVector *qiov = qemu_mallocz(sizeof(*qiov));