diff --git a/hw/misc/macio/macio.c b/hw/misc/macio/macio.c
index 93a7c7bbc8..08dbdd7fc0 100644
--- a/hw/misc/macio/macio.c
+++ b/hw/misc/macio/macio.c
@@ -226,7 +226,7 @@ static void macio_oldworld_init(Object *obj)
 
     object_initialize_child(OBJECT(s), "nvram", &os->nvram, TYPE_MACIO_NVRAM);
     dev = DEVICE(&os->nvram);
-    qdev_prop_set_uint32(dev, "size", 0x2000);
+    qdev_prop_set_uint32(dev, "size", MACIO_NVRAM_SIZE);
     qdev_prop_set_uint32(dev, "it_shift", 4);
 
     for (i = 0; i < 2; i++) {
diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
index eb597bbe20..6b2d781dea 100644
--- a/hw/ppc/mac_newworld.c
+++ b/hw/ppc/mac_newworld.c
@@ -450,12 +450,12 @@ static void ppc_core99_init(MachineState *machine)
         nvram_addr = 0xFFE00000;
     }
     dev = qdev_new(TYPE_MACIO_NVRAM);
-    qdev_prop_set_uint32(dev, "size", 0x2000);
+    qdev_prop_set_uint32(dev, "size", MACIO_NVRAM_SIZE);
     qdev_prop_set_uint32(dev, "it_shift", 1);
     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
     sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, nvram_addr);
     nvr = MACIO_NVRAM(dev);
-    pmac_format_nvram_partition(nvr, 0x2000);
+    pmac_format_nvram_partition(nvr, MACIO_NVRAM_SIZE);
     /* No PCI init: the BIOS will do it */
 
     dev = qdev_new(TYPE_FW_CFG_MEM);
diff --git a/include/hw/nvram/mac_nvram.h b/include/hw/nvram/mac_nvram.h
index baa9f6a5a6..b780aca470 100644
--- a/include/hw/nvram/mac_nvram.h
+++ b/include/hw/nvram/mac_nvram.h
@@ -29,9 +29,8 @@
 #include "exec/memory.h"
 #include "hw/sysbus.h"
 
-#define NVRAM_SIZE        0x2000
+#define MACIO_NVRAM_SIZE 0x2000
 
-/* Mac NVRAM */
 #define TYPE_MACIO_NVRAM "macio-nvram"
 OBJECT_DECLARE_SIMPLE_TYPE(MacIONVRAMState, MACIO_NVRAM)