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Diffstat (limited to 'src/mame/drivers/8080bw.cpp')
-rw-r--r--src/mame/drivers/8080bw.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/8080bw.cpp b/src/mame/drivers/8080bw.cpp
index 2ea3d35b96d..dd0cd620792 100644
--- a/src/mame/drivers/8080bw.cpp
+++ b/src/mame/drivers/8080bw.cpp
@@ -3232,7 +3232,7 @@ void _8080bw_state::claybust_io_map(address_map &map)
static INPUT_PORTS_START( claybust )
PORT_START("IN1")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_CUSTOM_MEMBER(DEVICE_SELF, _8080bw_state, claybust_gun_on_r, nullptr)
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_IMPULSE(2) PORT_CHANGED_MEMBER(DEVICE_SELF, _8080bw_state, claybust_gun_trigger, nullptr)
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_IMPULSE(2) PORT_CHANGED_MEMBER(DEVICE_SELF, _8080bw_state, claybust_gun_trigger, 0)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )