diff --git a/block.c b/block.c
index 2711c3dd3b..3615a6809e 100644
--- a/block.c
+++ b/block.c
@@ -2729,8 +2729,11 @@ static BlockReopenQueue *bdrv_reopen_queue_child(BlockReopenQueue *bs_queue,
     bdrv_join_options(bs, options, old_options);
     QDECREF(old_options);
 
-    /* bdrv_open() masks this flag out */
+    /* bdrv_open_inherit() sets and clears some additional flags internally */
     flags &= ~BDRV_O_PROTOCOL;
+    if (flags & BDRV_O_RDWR) {
+        flags |= BDRV_O_ALLOW_RDWR;
+    }
 
     QLIST_FOREACH(child, &bs->children, next) {
         QDict *new_child_options;