diff --git a/hw/pci-host/prep.c b/hw/pci-host/prep.c
index 94fdffa777..84d50ca22a 100644
--- a/hw/pci-host/prep.c
+++ b/hw/pci-host/prep.c
@@ -52,9 +52,9 @@ typedef struct RavenPCIState {
 typedef struct PRePPCIState {
     PCIHostState parent_obj;
 
-    MemoryRegion intack;
     qemu_irq irq[PCI_NUM_PINS];
     PCIBus pci_bus;
+    MemoryRegion pci_intack;
     RavenPCIState pci_dev;
 } PREPPCIState;
 
@@ -148,8 +148,9 @@ static void raven_pcihost_realizefn(DeviceState *d, Error **errp)
     memory_region_init_io(&h->mmcfg, OBJECT(s), &PPC_PCIIO_ops, s, "pciio", 0x00400000);
     memory_region_add_subregion(address_space_mem, 0x80800000, &h->mmcfg);
 
-    memory_region_init_io(&s->intack, OBJECT(s), &PPC_intack_ops, s, "pci-intack", 1);
-    memory_region_add_subregion(address_space_mem, 0xbffffff0, &s->intack);
+    memory_region_init_io(&s->pci_intack, OBJECT(s), &PPC_intack_ops, s,
+                          "pci-intack", 1);
+    memory_region_add_subregion(address_space_mem, 0xbffffff0, &s->pci_intack);
 
     /* TODO Remove once realize propagates to child devices. */
     object_property_set_bool(OBJECT(&s->pci_dev), true, "realized", errp);