Maori Party co-leader Te Ururoa Flavell's five children grew up in a Maori-speaking household.
But now the kids have left home the Maori Development Minister often finds himself talking to wife Erana Hond-Flavell in English - particularly after arriving home from a stint at Parliament.
"When I come back from Wellington it's my wife's view that I stay too easily in English," Flavell said. "And it was her challenge that we need to be a bit stronger in trying to maintain a Maori-speaking environment."
Flavell and Erana have now taken a New Year's resolution to talk to each other only in Maori for a year. He said he would also try to avoid English when speaking with other te reo speakers.
"There are a lot of people around, some in my office, who I deal with on a day-to-day basis where we should be conversing in Maori," Flavell said.