Gov. Andrew Cuomo promised Wednesday to restore the authority of the state comptroller to audit massive economic development projects — in the wake of the “Buffalo Billion” corruption scandal that rocked his administration and led to the convictions of former top aide Joe Percoco, a top SUNY official and donor-contractors tied to the governor.

Cuomo and state Comptroller Tom DiNapoli had an agreement in January to restore the comptroller’s powers to audit development projects being pushed through State University of New York and City University of New York nonprofits and the Office of General Services.

But nothing has happened since then, and the deal was not included in the state budget.

“The lawyers haven’t worked out the language. They will shortly,” Cuomo said on NY1 Wednesday, which reported on the delay.

“The comptroller is a man of his word. I’m a man of my word. We both said we were going to do it,” the governor said.

DiNapoli’s office said negotiations with Cuomo’s office are ongoing.

“We have a verbal agreement with the Governor to restore and increase the Comptroller’s oversight of contracts. We look forward to finalizing the implementation of the agreement,” said DiNapoli spokeswoman Jennifer Freeman.

Cuomo and the Legislature stripped the comptroller’s office of pre-audit functions in 2011, when the state was still crawling out of a recession. The governor at the time argued the oversight would delay contracts for projects designed to help boost upstate’s flagging economy.

As recently as December, Cuomo still opposed having the legislature restore the comptroller’s authority to vet contracts.

“The pre-audit function never was proven to be effective in finding fraud,” Cuomo claimed during an interview on Albany public radio station WAMC in December. “An audit doesn’t do that. An investigation does that.”

A coalition of government watchdog groups have complained about the foot-dragging, sending a letter to Cuomo and DiNapoli in June asking about what happened to the agreement.

“The governor doesn’t want people looking over his shoulder. This isn’t rocket science,” said John Kaehy of Reinvent Albany, one of the groups that sent the June letter.