President Donald Trump called Lockheed Martin CEO Marillyn Hewson "Marillyn Lockheed" while introducing her on Thursday.

The president was announcing that the US would soon impose tariffs on imported Chinese goods.

Hewson spoke in favor of the new tariffs.

President Donald Trump mangled the name of a top defense executive while announcing Thursday that the US would soon impose tariffs on imported Chinese goods.

He introduced Lockheed Martin CEO Marillyn Hewson, who was there to voice support for the move, as "Marillyn Lockheed."

"We have some of our great business leaders — and leaders period — right behind me," Trump said at the lectern before asking Hewson to say a few words.

"I may ask Marillyn Lockheed, the leading women's business executive in this country, according to many," Trump said.

The president then talked about the F-35, which is made by Lockheed Martin.

"We buy billions and billions of dollars worth of that beautiful F-35. It's stealth. You cannot see it. Is that correct? It better be correct," Trump said.

Lockheed Martin was founded in 1995 when Lockheed Corp. merged with Martin Marietta.

Watch video of Trump's slip-up below: