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Diffstat (limited to 'src/mame/drivers/mtx.cpp')
-rw-r--r--src/mame/drivers/mtx.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/mtx.cpp b/src/mame/drivers/mtx.cpp
index d11adfd920d..77702fca809 100644
--- a/src/mame/drivers/mtx.cpp
+++ b/src/mame/drivers/mtx.cpp
@@ -302,7 +302,7 @@ MACHINE_CONFIG_START(mtx_state::mtx512)
MCFG_SCREEN_UPDATE_DEVICE( "tms9929a", tms9929a_device, screen_update )
/* sound hardware */
- MCFG_SPEAKER_STANDARD_MONO("mono")
+ SPEAKER(config, "mono").front_center();
MCFG_DEVICE_ADD(SN76489A_TAG, SN76489A, XTAL(4'000'000))
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)