diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c
index 497b0afd9f..2d2a6594fc 100644
--- a/hw/char/virtio-serial-bus.c
+++ b/hw/char/virtio-serial-bus.c
@@ -798,7 +798,7 @@ static const TypeInfo virtser_bus_info = {
 
 static void virtser_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent)
 {
-    VirtIOSerialPort *port = DO_UPCAST(VirtIOSerialPort, dev, qdev);
+    VirtIOSerialPort *port = VIRTIO_SERIAL_PORT(qdev);
 
     monitor_printf(mon, "%*sport %d, guest %s, host %s, throttle %s\n",
                    indent, "", port->id,