diff --git a/src/mame/drivers/tmnt.c b/src/mame/drivers/tmnt.c
index 6662de7fa2e..3a27ee3557e 100644
--- a/src/mame/drivers/tmnt.c
+++ b/src/mame/drivers/tmnt.c
@@ -773,7 +773,7 @@ static ADDRESS_MAP_START( blswhstl_main_map, ADDRESS_SPACE_PROGRAM, 16 )
 	AM_RANGE(0x700200, 0x700201) AM_WRITE(blswhstl_eeprom_w)
 	AM_RANGE(0x700300, 0x700301) AM_WRITE(blswhstl_700300_w)
 	AM_RANGE(0x700400, 0x700401) AM_WRITE(watchdog_reset16_w)
-	AM_RANGE(0x780600, 0x780603) AM_DEVREAD8(SOUND, "konami", k053260_r, 0x00ff)	/* K053260 */
+	AM_RANGE(0x780600, 0x780603) AM_DEVREAD8(SOUND, "konami", punkshot_sound_r, 0x00ff)	/* K053260 */
 	AM_RANGE(0x780600, 0x780601) AM_DEVWRITE8(SOUND, "konami", k053260_w, 0x00ff)
 	AM_RANGE(0x780604, 0x780605) AM_WRITE(ssriders_soundkludge_w)
 	AM_RANGE(0x780700, 0x78071f) AM_WRITE(K053251_lsb_w)