diff --git a/src/mame/drivers/playch10.cpp b/src/mame/drivers/playch10.cpp
index bdc44220f4a..d879d0f381d 100644
--- a/src/mame/drivers/playch10.cpp
+++ b/src/mame/drivers/playch10.cpp
@@ -584,8 +584,8 @@ static INPUT_PORTS_START( playch10 )
 	PORT_DIPSETTING(    0x80, DEF_STR( Free_Play ) )
 
 	PORT_START("P1")
-	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("P1 Button B")
-	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("P1 Button A")
+	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("P1 Button A")
+	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("P1 Button B")
 	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_START2 ) PORT_NAME("Game Select")
 	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_START1 ) PORT_NAME("Start")
 	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP    )