The Electoral Commission is rechecking all voting results after a data entry error wrongly saw two fringe parties gain hundreds of votes at three voting booths.
Two voting places in Port Waikato, and one in Christchurch electorate Ilam, saw hundreds of votes wrongly allocated to the wrong parties.
The Leighton Baker Party and the New Conservatives were beneficiaries of the errors.
Votes given to them should have gone to the National Party.
Chief Electoral Officer Karl Le Quesne says the mistake doesn't affect overall results.
Le Quesne spoke to Corin Dann.
