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Diffstat (limited to 'src/mame/drivers/ace.c')
-rw-r--r--src/mame/drivers/ace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/ace.c b/src/mame/drivers/ace.c
index 1e0e4c5c594..2a84108ddb8 100644
--- a/src/mame/drivers/ace.c
+++ b/src/mame/drivers/ace.c
@@ -248,7 +248,7 @@ static INPUT_PORTS_START( ace )
//c012
PORT_START("c014") /* VBLANK??? */
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_VBLANK )
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_VBLANK("screen")
PORT_START("c015") /* coin input */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )