diff --git a/hw/grackle_pci.c b/hw/grackle_pci.c
index aa0c51b..8444a35 100644
--- a/hw/grackle_pci.c
+++ b/hw/grackle_pci.c
@@ -88,7 +88,7 @@ PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic)
     qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     d = FROM_SYSBUS(GrackleState, s);
-    d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
+    d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci.0",
                                          pci_grackle_set_irq,
                                          pci_grackle_map_irq,
                                          pic, 0, 4);
diff --git a/hw/gt64xxx.c b/hw/gt64xxx.c
index 55971b9..756e1bf 100644
--- a/hw/gt64xxx.c
+++ b/hw/gt64xxx.c
@@ -1113,7 +1113,7 @@ PCIBus *pci_gt64120_init(qemu_irq *pic)
     s = qemu_mallocz(sizeof(GT64120State));
     s->pci = qemu_mallocz(sizeof(GT64120PCIState));
 
-    s->pci->bus = pci_register_bus(NULL, "pci",
+    s->pci->bus = pci_register_bus(NULL, "pci.0",
                                    pci_gt64120_set_irq, pci_gt64120_map_irq,
                                    pic, 144, 4);
     s->ISD_handle = cpu_register_io_memory(gt64120_read, gt64120_write, s);
diff --git a/hw/ppc4xx_pci.c b/hw/ppc4xx_pci.c
index c9e3279..dc1d2f8 100644
--- a/hw/ppc4xx_pci.c
+++ b/hw/ppc4xx_pci.c
@@ -357,7 +357,7 @@ PCIBus *ppc4xx_pci_init(CPUState *env, qemu_irq pci_irqs[4],
 
     controller = qemu_mallocz(sizeof(PPC4xxPCIState));
 
-    controller->pci_state.bus = pci_register_bus(NULL, "pci",
+    controller->pci_state.bus = pci_register_bus(NULL, "pci.0",
                                                  ppc4xx_pci_set_irq,
                                                  ppc4xx_pci_map_irq,
                                                  pci_irqs, 0, 4);
diff --git a/hw/ppce500_pci.c b/hw/ppce500_pci.c
index 336d284..fa4387a 100644
--- a/hw/ppce500_pci.c
+++ b/hw/ppce500_pci.c
@@ -276,7 +276,7 @@ PCIBus *ppce500_pci_init(qemu_irq pci_irqs[4], target_phys_addr_t registers)
 
     controller = qemu_mallocz(sizeof(PPCE500PCIState));
 
-    controller->pci_state.bus = pci_register_bus(NULL, "pci",
+    controller->pci_state.bus = pci_register_bus(NULL, "pci.0",
                                                  mpc85xx_pci_set_irq,
                                                  mpc85xx_pci_map_irq,
                                                  pci_irqs, 0x88, 4);
diff --git a/hw/prep_pci.c b/hw/prep_pci.c
index 144fde0..7ea7ca5 100644
--- a/hw/prep_pci.c
+++ b/hw/prep_pci.c
@@ -117,7 +117,7 @@ PCIBus *pci_prep_init(qemu_irq *pic)
     int PPC_io_memory;
 
     s = qemu_mallocz(sizeof(PREPPCIState));
-    s->bus = pci_register_bus(NULL, "pci",
+    s->bus = pci_register_bus(NULL, "pci.0",
                               prep_set_irq, prep_map_irq, pic, 0, 4);
 
     pci_host_conf_register_ioport(0xcf8, s);
diff --git a/hw/sh_pci.c b/hw/sh_pci.c
index cc2f190..0e138ed 100644
--- a/hw/sh_pci.c
+++ b/hw/sh_pci.c
@@ -98,7 +98,7 @@ PCIBus *sh_pci_register_bus(pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
     int reg;
 
     p = qemu_mallocz(sizeof(SHPCIC));
-    p->bus = pci_register_bus(NULL, "pci",
+    p->bus = pci_register_bus(NULL, "pci.0",
                               set_irq, map_irq, opaque, devfn_min, nirq);
 
     p->dev = pci_register_device(p->bus, "SH PCIC", sizeof(PCIDevice),
diff --git a/hw/unin_pci.c b/hw/unin_pci.c
index f0a773d..57c56e0 100644
--- a/hw/unin_pci.c
+++ b/hw/unin_pci.c
@@ -226,7 +226,7 @@ PCIBus *pci_pmac_init(qemu_irq *pic)
     qdev_init_nofail(dev);
     s = sysbus_from_qdev(dev);
     d = FROM_SYSBUS(UNINState, s);
-    d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
+    d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci.0",
                                          pci_unin_set_irq, pci_unin_map_irq,
                                          pic, 11 << 3, 4);
 
@@ -278,7 +278,7 @@ PCIBus *pci_pmac_u3_init(qemu_irq *pic)
     s = sysbus_from_qdev(dev);
     d = FROM_SYSBUS(UNINState, s);
 
-    d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
+    d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci.0",
                                          pci_unin_set_irq, pci_unin_map_irq,
                                          pic, 11 << 3, 4);
 
diff --git a/hw/versatile_pci.c b/hw/versatile_pci.c
index 199bc19..d0469ff 100644
--- a/hw/versatile_pci.c
+++ b/hw/versatile_pci.c
@@ -125,7 +125,7 @@ static int pci_vpb_init(SysBusDevice *dev)
     for (i = 0; i < 4; i++) {
         sysbus_init_irq(dev, &s->irq[i]);
     }
-    bus = pci_register_bus(&dev->qdev, "pci",
+    bus = pci_register_bus(&dev->qdev, "pci.0",
                            pci_vpb_set_irq, pci_vpb_map_irq, s->irq,
                            11 << 3, 4);
 
