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Diffstat (limited to 'src/mame/drivers/kingobox.c')
-rw-r--r--src/mame/drivers/kingobox.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/kingobox.c b/src/mame/drivers/kingobox.c
index 3eb46b22e01..beba0045829 100644
--- a/src/mame/drivers/kingobox.c
+++ b/src/mame/drivers/kingobox.c
@@ -301,7 +301,7 @@ static INPUT_PORTS_START( ringking )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* Sound busy??? */
- PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_VBLANK )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_CUSTOM ) PORT_VBLANK("screen")
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )