diff --git a/hw/ppc/prep.c b/hw/ppc/prep.c
index a1e7219db6..dbbe749bde 100644
--- a/hw/ppc/prep.c
+++ b/hw/ppc/prep.c
@@ -885,7 +885,6 @@ static void ibm_40p_machine_init(MachineClass *mc)
     mc->desc = "IBM RS/6000 7020 (40p)",
     mc->init = ibm_40p_init;
     mc->max_cpus = 1;
-    mc->pci_allow_0_address = true;
     mc->default_ram_size = 128 * M_BYTE;
     mc->block_default_type = IF_SCSI;
     mc->default_boot_order = "c";