First lady Melania Trump and first daughter Ivanka Trump's 2017 New York mayoral election votes did not count after the two reportedly failed to follow absentee ballot instructions.

The first lady failed to sign the envelope she put the ballot in, making her vote invalid, the New York Daily News reported Monday.

"If any of the information is missing, it is invalid," a Board of Elections official told the paper.

Trump's daughter Ivanka filled her ballot out correctly, but didn't mail it in until election day, which according to Board of Elections officials, is too late to be counted.

President Trump also listed his birthday wrong by a full month on his ballot, it is not clear whether the mistake would affect his vote.

Jared Kushner, White House adviser and son-in-law to the president did not mail his ballot back at all.

Democratic Mayor Bill de Blasio was re-elected last month.

The Trump family's voting flop comes after both Ivanka and Eric Trump did not vote for their father in the 2016 presidential primaries after failing to meet the deadline to register by party.