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-rw-r--r--src/devices/bus/astrocde/lightpen.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/bus/astrocde/lightpen.cpp b/src/devices/bus/astrocde/lightpen.cpp
index e31eed122be..07c5c7480ee 100644
--- a/src/devices/bus/astrocde/lightpen.cpp
+++ b/src/devices/bus/astrocde/lightpen.cpp
@@ -71,7 +71,7 @@ INPUT_CHANGED_MEMBER( astrocade_lightpen_device::trigger )
static INPUT_PORTS_START( astrocade_lightpen )
PORT_START("TRIGGER")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_CHANGED_MEMBER(DEVICE_SELF, astrocade_lightpen_device, trigger, nullptr)
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_CHANGED_MEMBER(DEVICE_SELF, astrocade_lightpen_device, trigger, 0)
PORT_BIT( 0xfe, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("LIGHTX")