They weren't the only members of the Trump family who had trouble filling out the New York ballot, though — the president's absentee ballot also had the wrong birthdate.
The New York Daily News first reported the errors on the ballots submitted by the First Family, who moved to Washington, DC, following Trump's election but filled out absentee ballots to participate in November's New York City mayoral race.
When Melania Trump mailed her ballot, she reportedly forgot to sign the envelope, as required by New York City's Board of Elections. Meanwhile, Ivanka Trump filled out the ballot correctly, but mailed it on the day of the election, which is too late for the vote to count toward the final tally, the Daily News reported.