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Diffstat (limited to 'src/devices/bus/a2bus/a2mcms.cpp')
-rw-r--r--src/devices/bus/a2bus/a2mcms.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/bus/a2bus/a2mcms.cpp b/src/devices/bus/a2bus/a2mcms.cpp
index 2a7912a6a84..2b82cbc536f 100644
--- a/src/devices/bus/a2bus/a2mcms.cpp
+++ b/src/devices/bus/a2bus/a2mcms.cpp
@@ -53,7 +53,7 @@ MACHINE_CONFIG_START(a2bus_mcms1_device::device_add_mconfig)
MCFG_SPEAKER_STANDARD_STEREO("mcms_l", "mcms_r")
MCFG_DEVICE_ADD(ENGINE_TAG, MCMS, 1000000)
- MCFG_MCMS_IRQ_CALLBACK(WRITELINE(a2bus_mcms1_device, irq_w))
+ MCFG_MCMS_IRQ_CALLBACK(WRITELINE(*this, a2bus_mcms1_device, irq_w))
MCFG_SOUND_ROUTE(0, "mcms_l", 1.0)
MCFG_SOUND_ROUTE(1, "mcms_r", 1.0)