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-rw-r--r--src/mame/drivers/supracan.cpp3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/mame/drivers/supracan.cpp b/src/mame/drivers/supracan.cpp
index 8203aae4d12..16665d42813 100644
--- a/src/mame/drivers/supracan.cpp
+++ b/src/mame/drivers/supracan.cpp
@@ -2074,8 +2074,7 @@ void supracan_state::supracan(machine_config &config)
m_soundcpu->set_addrmap(AS_PROGRAM, &supracan_state::supracan_sound_mem);
m_soundcpu->set_vblank_int("screen", FUNC(supracan_state::sound_irq));
- config.m_perfect_cpu_quantum = subtag("maincpu");
- config.m_perfect_cpu_quantum = subtag("soundcpu");
+ config.set_perfect_quantum(m_soundcpu);
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_raw(XTAL(10'738'635)/2, 348, 0, 256, 256, 0, 240); /* No idea if this is correct */