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-rw-r--r--src/mame/atari/bsktball.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/atari/bsktball.cpp b/src/mame/atari/bsktball.cpp
index 202f16b4222..19f8a1362b7 100644
--- a/src/mame/atari/bsktball.cpp
+++ b/src/mame/atari/bsktball.cpp
@@ -125,7 +125,7 @@ static INPUT_PORTS_START( bsktball )
/* 0x80 - DR3 = PL1 V DIR */
PORT_START("IN1")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_VBLANK("screen")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_READ_LINE_DEVICE_MEMBER("screen", FUNC(screen_device::vblank))
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_TILT )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* SPARE */
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* TEST STEP */