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-rw-r--r--src/mame/drivers/system1.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/system1.cpp b/src/mame/drivers/system1.cpp
index afd2a6cb95f..9aa21474756 100644
--- a/src/mame/drivers/system1.cpp
+++ b/src/mame/drivers/system1.cpp
@@ -2192,7 +2192,7 @@ MACHINE_CONFIG_START(system1_state::sys1ppi)
MCFG_PALETTE_FORMAT(BBGGGRRR)
/* sound hardware */
- MCFG_SPEAKER_STANDARD_MONO("mono")
+ SPEAKER(config, "mono").front_center();
MCFG_GENERIC_LATCH_8_ADD("soundlatch")