The CEO of Boeing has promised Donald Trump to build two Air Force One jets for under $4 billion — following public outcry from the president-elect about the enormous price tag.

“We’re going to get it done for less than that, and we’re committed to working together to make sure that happens. And I was able to give the President-elect my personal commitment on behalf of the Boeing Company,” Dennis Muilenburg, the aircraft giant CEO, told reporters after a Mar-a-Lago meet with Trump.

Trump took to Twitter earlier this month to negotiate a lower price for the president’s airplanes.

“Boeing is building a brand new 747 Air Force One for future presidents, but costs are out of control, more than $4 billion. Cancel order!” the president-elect said in a Dec. 6 missive.

“The plane is totally out of control. It’s going to be over $4 billion for Air Force One program and I think it’s ridiculous. I think Boeing is doing a little bit of a number. We want Boeing to make a lot of money, but not that much money,” Trump later that morning told reporters at Trump Tower.

The Government Accountability Office estimated in 2015 the price tag for the Air Force One jets was $3.2 billion.

At Mar-a-Lago Wednesday, Muilenburg praised his meeting with Trump.

“It went great. Very productive, and really encouraged by the dialogue,” he said.

Boeing, it was reporter earlier this month, is giving $1 million to Trump’s inauguration.