diff --git a/block.c b/block.c
index 75a9fd4..e02d83b 100644
--- a/block.c
+++ b/block.c
@@ -2883,8 +2883,16 @@
 
     /* Inherit from parent node */
     if (parent_options) {
+        QemuOpts *opts;
+        QDict *options_copy;
         assert(!flags);
         role->inherit_options(&flags, options, parent_flags, parent_options);
+        options_copy = qdict_clone_shallow(options);
+        opts = qemu_opts_create(&bdrv_runtime_opts, NULL, 0, &error_abort);
+        qemu_opts_absorb_qdict(opts, options_copy, NULL);
+        update_flags_from_options(&flags, opts);
+        qemu_opts_del(opts);
+        QDECREF(options_copy);
     }
 
     /* Old values are used for options that aren't set yet */