diff --git a/hw/ppc/ppc440_uc.c b/hw/ppc/ppc440_uc.c
index c1cf8d0..38fc392 100644
--- a/hw/ppc/ppc440_uc.c
+++ b/hw/ppc/ppc440_uc.c
@@ -1369,11 +1369,11 @@
 
     dev = qdev_new(TYPE_PPC460EX_PCIE_HOST);
     qdev_prop_set_int32(dev, "dcrn-base", DCRN_PCIE0_BASE);
-    qdev_realize_and_unref(dev, NULL, &error_fatal);
+    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
     ppc460ex_pcie_register_dcrs(PPC460EX_PCIE_HOST(dev), env);
 
     dev = qdev_new(TYPE_PPC460EX_PCIE_HOST);
     qdev_prop_set_int32(dev, "dcrn-base", DCRN_PCIE1_BASE);
-    qdev_realize_and_unref(dev, NULL, &error_fatal);
+    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
     ppc460ex_pcie_register_dcrs(PPC460EX_PCIE_HOST(dev), env);
 }