Liberal National Party leader Tim Nicholls has made his biggest blunder of the election campaign just hours before Queenslanders go to the polls.

His attempts to shore up support over the past 27 days has fared well compared to the rocky ride experienced by Premier Annastacia Palaszczuk, but a stumble on live television could be a telling late setback.

Mr Nicholls tripped up during a round of interviews with breakfast television shows on Friday, appearing to urge voters to back One Nation on Saturday.

"If you want a stable majority government ... then the best thing to do is to support your LNP, One N, uh, LNP candidate at the election," he said on Seven.

He later told reporters the slip-up was a result of the long days on the hustings.

"Look, it's been a long campaign," he later said from Pumicestone, the first stop on his final six-seat southeast blitz.

"I was simply going to say that you need to vote one for your local LNP candidate as I've probably said 500 times during this election campaign."

Mr Nicholls' pitch to voters both in the regions and the southeast has been overshadowed by the possibility of his party having to lean on One Nation to form government.

He has insisted there will be no ministry positions for Pauline Hanson's party and criticised it on a number of fronts.

Yet he has failed to rule out a deal and the LNP will preference One Nation ahead of Labor in a majority of the state's 93 seats.

Zig-zagging across the state, Mr Nicholls has done what all good politicians do.

He's smiled for the cameras, shaken many hands, had a few beers at various watering holes with locals and made some commitments.

He's even taken a ride on a Gold Coast rollercoaster and donned a wetsuit to swim with Barramundi in a freshwater tank in Cairns.

But it may not have been enough to win over the voters he angered when the LNP was last in power.

Mr Nicholls says voters can trust his undertaking not to sack public servants, despite he and former Premier Campbell Newman axing 14,000 workers before being dumped in 2015.

Among his campaign assurances he has also indicated public sector jobs are safe even though the LNP planned to save $1.6 billion over four years by reigning in government spending.

"There's no forced redundancies, there's no increase in redundancies," he told ABC radio on Friday.

"The savings we're talking about are exactly the same savings Labor is talking about."

He has vowed to "stabilise" debt, reduce payroll taxes for small businesses, lower power prices, build a coal fired power station and promised not to repeat his attempt to sell off energy assets.

"We did make mistakes," he admitted. "Mistakes that an LNP government I lead won't ever make again."