Protest ???

[kssa]

In our league the teams have always make sure that their lineup cards are correct before they hand them to an umpire.....Team one is at bat when team two discovers that team 1 has an illegal batter that is not on the lineup card and is also the pitcher.The manager from team one forgot to include the pitchers name on the line up card.Team one has ten players on the lineup card and eleven batters..What should be done....This is what was done...The illegal batter was called out and would receive an out everytime this spot in the order was to bat....Was this the right call!!