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-rw-r--r--src/mame/drivers/tapatune.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/tapatune.cpp b/src/mame/drivers/tapatune.cpp
index c87b667425f..97af2505ce2 100644
--- a/src/mame/drivers/tapatune.cpp
+++ b/src/mame/drivers/tapatune.cpp
@@ -552,7 +552,7 @@ void tapatune_state::tapatune(machine_config &config)
M68000(config, m_videocpu, XTAL(24'000'000) / 2);
m_videocpu->set_addrmap(AS_PROGRAM, &tapatune_state::video_map);
- config.m_perfect_cpu_quantum = subtag("videocpu");
+ config.set_perfect_quantum(m_videocpu);
hd6845s_device &crtc(HD6845S(config, "crtc", XTAL(24'000'000) / 16));
crtc.set_screen("screen");