diff --git a/src/mame/drivers/namcos1.c b/src/mame/drivers/namcos1.c
index 42e5decab74..7c1a6b38125 100644
--- a/src/mame/drivers/namcos1.c
+++ b/src/mame/drivers/namcos1.c
@@ -657,16 +657,6 @@ static INPUT_PORTS_START( tankfrc4 )
 	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
 
 	PORT_START( "IN1" )
-	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2)
-	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2)
-	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2)
-	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(2)
-	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) // and start2
-	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
-	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
-	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
-
-	PORT_START( "IN2" )
 	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(3)
 	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(3)
 	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(3)
@@ -676,6 +666,16 @@ static INPUT_PORTS_START( tankfrc4 )
 	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
 	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
 
+	PORT_START( "IN2" )
+	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2)
+	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2)
+	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2)
+	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(2)
+	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) // and start2
+	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
 	PORT_START( "IN3" )
 	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(4)
 	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(4)