diff --git a/hw/s390x/s390-virtio-bus.c b/hw/s390x/s390-virtio-bus.c
index 2cff6b794d701c906df4a2bd4cfb4f3c2a075c1f..d52a54725f9df34ea9730070553436876a859e28 100644
--- a/hw/s390x/s390-virtio-bus.c
+++ b/hw/s390x/s390-virtio-bus.c
@@ -669,7 +669,10 @@ static void virtio_s390_bus_new(VirtioBusState *bus, VirtIOS390Device *dev)
 {
     DeviceState *qdev = DEVICE(dev);
     BusState *qbus;
-    qbus_create_inplace((BusState *)bus, TYPE_VIRTIO_S390_BUS, qdev, NULL);
+    char virtio_bus_name[] = "virtio-bus";
+
+    qbus_create_inplace((BusState *)bus, TYPE_VIRTIO_S390_BUS, qdev,
+                        virtio_bus_name);
     qbus = BUS(bus);
     qbus->allow_hotplug = 1;
 }
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index c0f26460a903cd6b359eb76b4fd5b61c2d8b3082..ef9908001d0a88adbfd1a2e5f434cbd635eec2a2 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -1062,8 +1062,10 @@ static void virtio_ccw_bus_new(VirtioBusState *bus, VirtioCcwDevice *dev)
 {
     DeviceState *qdev = DEVICE(dev);
     BusState *qbus;
+    char virtio_bus_name[] = "virtio-bus";
 
-    qbus_create_inplace((BusState *)bus, TYPE_VIRTIO_CCW_BUS, qdev, NULL);
+    qbus_create_inplace((BusState *)bus, TYPE_VIRTIO_CCW_BUS, qdev,
+                        virtio_bus_name);
     qbus = BUS(bus);
     qbus->allow_hotplug = 1;
 }
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 41bb41eb2e7ad0d3ecdb138d1fa63613bb9f8f34..070df44aad84d629738c80f031e5dc9ce9a9fceb 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1474,7 +1474,10 @@ static void virtio_pci_bus_new(VirtioBusState *bus, VirtIOPCIProxy *dev)
 {
     DeviceState *qdev = DEVICE(dev);
     BusState *qbus;
-    qbus_create_inplace((BusState *)bus, TYPE_VIRTIO_PCI_BUS, qdev, NULL);
+    char virtio_bus_name[] = "virtio-bus";
+
+    qbus_create_inplace((BusState *)bus, TYPE_VIRTIO_PCI_BUS, qdev,
+                        virtio_bus_name);
     qbus = BUS(bus);
     qbus->allow_hotplug = 1;
 }