diff --git a/device-hotplug.c b/device-hotplug.c
index 103d34a..ebfa6b1 100644
--- a/device-hotplug.c
+++ b/device-hotplug.c
@@ -33,12 +33,14 @@
 {
     DriveInfo *dinfo;
     QemuOpts *opts;
+    MachineClass *mc;
 
     opts = drive_def(optstr);
     if (!opts)
         return NULL;
 
-    dinfo = drive_init(opts, current_machine->block_default_type);
+    mc = MACHINE_GET_CLASS(current_machine);
+    dinfo = drive_init(opts, mc->qemu_machine->block_default_type);
     if (!dinfo) {
         qemu_opts_del(opts);
         return NULL;