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Diffstat (limited to 'src/mame/drivers/orbit.c')
-rw-r--r--src/mame/drivers/orbit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/orbit.c b/src/mame/drivers/orbit.c
index 02b29874f2e..8e7b76725bd 100644
--- a/src/mame/drivers/orbit.c
+++ b/src/mame/drivers/orbit.c
@@ -187,7 +187,7 @@ static INPUT_PORTS_START( orbit )
PORT_DIPNAME( 0x40, 0x40, "DIAG TEST" ) /* should be off */
PORT_DIPSETTING( 0x40, DEF_STR( Off ))
PORT_DIPSETTING( 0x00, DEF_STR( On ))
- PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_VBLANK )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_VBLANK("screen")
PORT_START("BUTTONS") /* 2800 */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME("Game 7 / Strong Gravity") PORT_CODE(KEYCODE_7_PAD)