Labour Party leader David Cunliffe is calling for a cross-party accord on the future of superannuation.
Labour's policy is to raise the age of eligibility for superannuation to 67, a policy that could bring it into conflict with New Zealand First which wants the age to remain at 65.
Speaking on TV3's The Nation on Saturday morning, Mr Cunliffe refused to say whether he would change his policy if it became a sticking point in post-election talks with New Zealand First.
But he said voters deserve long-term stability on the issue, and that could be achieved through a cross-party accord.
Mr Cunliffe says he has suggested a cross-party accord to National in the past.
Key house comment mistake says Cunliffe
Mr Cunliffe also admits it was a mistake to criticise the Prime Minister for his "nice house".
John Key lives in a multi-million dollar house in Parnell while Mr Cunliffe's Herne Bay home is estimated to be worth $2 million.
Also speaking The Nation Mr Cunliffe said he is not criticising Mr Key personally.
He said he wants to make the point that he and Mr Key have different views on housing policy.