diff --git a/hw/s390-virtio-bus.c b/hw/s390-virtio-bus.c
index 720dbb9..849adab 100644
--- a/hw/s390-virtio-bus.c
+++ b/hw/s390-virtio-bus.c
@@ -490,6 +490,8 @@ static int s390_virtio_busdev_init(DeviceState *dev)
     VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
     VirtIOS390DeviceClass *_info = VIRTIO_S390_DEVICE_GET_CLASS(dev);
 
+    _dev->bus = virtio_s390_bus_new(_dev);
+
     return _info->init(_dev);
 }
 
diff --git a/hw/s390-virtio-bus.h b/hw/s390-virtio-bus.h
index 7c5a945..08e68c2 100644
--- a/hw/s390-virtio-bus.h
+++ b/hw/s390-virtio-bus.h
@@ -90,6 +90,7 @@ struct VirtIOS390Device {
     virtio_net_conf net;
     VirtIOSCSIConf scsi;
     VirtIORNGConf rng;
+    VirtioBusState *bus;
 };
 
 typedef struct VirtIOS390Bus {