diff --git a/vl.c b/vl.c
index a8dc73d..6b9378e 100644
--- a/vl.c
+++ b/vl.c
@@ -2844,6 +2844,7 @@ int main(int argc, char **argv, char **envp)
     }

     module_call_init(MODULE_INIT_QOM);
+    object_class_foreach(walkerfn, TYPE_OBJECT, false, NULL);

     qemu_add_opts(&qemu_drive_opts);
     qemu_add_opts(&qemu_chardev_opts);