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-rw-r--r--src/mame/drivers/einstein.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/einstein.cpp b/src/mame/drivers/einstein.cpp
index 0d6d33d0035..2013166efbf 100644
--- a/src/mame/drivers/einstein.cpp
+++ b/src/mame/drivers/einstein.cpp
@@ -621,7 +621,7 @@ MACHINE_CONFIG_START(einstein_state::einstein)
MCFG_SCREEN_UPDATE_DEVICE("vdp", tms9129_device, screen_update)
/* sound hardware */
- MCFG_SPEAKER_STANDARD_MONO("mono")
+ SPEAKER(config, "mono").front_center();
MCFG_DEVICE_ADD(IC_I030, AY8910, XTAL_X002 / 4)
MCFG_AY8910_PORT_B_READ_CB(READ8(*this, einstein_state, keyboard_data_read))
MCFG_AY8910_PORT_A_WRITE_CB(WRITE8(*this, einstein_state, keyboard_line_write))