diff --git a/src/mame/drivers/neogeo.c b/src/mame/drivers/neogeo.c
index 518ae9cdb2f..9694f86d028 100644
--- a/src/mame/drivers/neogeo.c
+++ b/src/mame/drivers/neogeo.c
@@ -169,6 +169,11 @@
 static UINT8 *memcard_data;
 static UINT16 *save_ram;
 
+static const char *audio_banks[4] =
+{
+    NEOGEO_BANK_AUDIO_CPU_CART_BANK0, NEOGEO_BANK_AUDIO_CPU_CART_BANK1, NEOGEO_BANK_AUDIO_CPU_CART_BANK2, NEOGEO_BANK_AUDIO_CPU_CART_BANK3
+};
+
 
 /*************************************
  *
@@ -708,7 +713,7 @@ static void set_audio_cpu_banking( running_machine &machine )
 	int region;
 
 	for (region = 0; region < 4; region++)
-		state->membank(NEOGEO_BANK_AUDIO_CPU_CART_BANK + region)->set_entry(state->m_audio_cpu_banks[region]);
+		state->membank(audio_banks[region])->set_entry(state->m_audio_cpu_banks[region]);
 }
 
 
@@ -808,7 +813,7 @@ static void audio_cpu_banking_init( running_machine &machine )
 		for (bank = 0; bank < 0x100; bank++)
 		{
 			UINT32 bank_address = 0x10000 + (((bank << (11 + region)) & 0x3ffff) & address_mask);
-			state->membank(NEOGEO_BANK_AUDIO_CPU_CART_BANK + region)->configure_entry(bank, &rgn[bank_address]);
+			state->membank(audio_banks[region])->configure_entry(bank, &rgn[bank_address]);
 		}
 	}
 
@@ -1114,10 +1119,10 @@ ADDRESS_MAP_END
 
 static ADDRESS_MAP_START( audio_map, AS_PROGRAM, 8, neogeo_state )
 	AM_RANGE(0x0000, 0x7fff) AM_ROMBANK(NEOGEO_BANK_AUDIO_CPU_MAIN_BANK)
-	AM_RANGE(0x8000, 0xbfff) AM_ROMBANK(NEOGEO_BANK_AUDIO_CPU_CART_BANK + 3)
-	AM_RANGE(0xc000, 0xdfff) AM_ROMBANK(NEOGEO_BANK_AUDIO_CPU_CART_BANK + 2)
-	AM_RANGE(0xe000, 0xefff) AM_ROMBANK(NEOGEO_BANK_AUDIO_CPU_CART_BANK + 1)
-	AM_RANGE(0xf000, 0xf7ff) AM_ROMBANK(NEOGEO_BANK_AUDIO_CPU_CART_BANK + 0)
+	AM_RANGE(0x8000, 0xbfff) AM_ROMBANK(NEOGEO_BANK_AUDIO_CPU_CART_BANK3)
+	AM_RANGE(0xc000, 0xdfff) AM_ROMBANK(NEOGEO_BANK_AUDIO_CPU_CART_BANK2)
+	AM_RANGE(0xe000, 0xefff) AM_ROMBANK(NEOGEO_BANK_AUDIO_CPU_CART_BANK1)
+	AM_RANGE(0xf000, 0xf7ff) AM_ROMBANK(NEOGEO_BANK_AUDIO_CPU_CART_BANK0)
 	AM_RANGE(0xf800, 0xffff) AM_RAM
 ADDRESS_MAP_END
 
diff --git a/src/mame/includes/neogeo.h b/src/mame/includes/neogeo.h
index ad1c5915b48..24e4d18f8b8 100644
--- a/src/mame/includes/neogeo.h
+++ b/src/mame/includes/neogeo.h
@@ -20,6 +20,10 @@
 #define NEOGEO_VBLANK_RELOAD_HPOS               (0x11f)
 
 #define NEOGEO_BANK_AUDIO_CPU_CART_BANK         "audio_cart"
+#define NEOGEO_BANK_AUDIO_CPU_CART_BANK0        "audio_cart0"
+#define NEOGEO_BANK_AUDIO_CPU_CART_BANK1        "audio_cart1"
+#define NEOGEO_BANK_AUDIO_CPU_CART_BANK2        "audio_cart2"
+#define NEOGEO_BANK_AUDIO_CPU_CART_BANK3        "audio_cart3"
 /* do not use 2, 3 and 4 */
 #define NEOGEO_BANK_CARTRIDGE                   "cartridge"
 #define NEOGEO_BANK_BIOS                        "bios"