diff --git a/hw/hppa/machine.c b/hw/hppa/machine.c
index 57cb4e0f34..2d62a248b8 100644
--- a/hw/hppa/machine.c
+++ b/hw/hppa/machine.c
@@ -100,7 +100,7 @@ static void machine_hppa_init(MachineState *machine)
     ram_region = g_new(MemoryRegion, 1);
     memory_region_allocate_system_memory(ram_region, OBJECT(machine),
                                          "ram", ram_size);
-    memory_region_add_subregion(addr_space, 0, ram_region);
+    memory_region_add_subregion_overlap(addr_space, 0, ram_region, -1);
 
     /* Init Lasi chip */
     lasi_init(addr_space);