The husband of UFC star Andrea Lee has come under fire after a photo of him emerged on social media exposing his swastika tattoo.

Lee posted a snap of the pair together at a lake, and the Twittersphere quickly noticed the pro-Nazi ink on Donny Aaron’s left arm.

Upon realizing what could be seen, Lee cropped the image and left it on her Twitter and Instagram accounts without a view of Aaron’s arm, but it was too late, and she was forced to defend her husband — who’s also her coach.

She said Aaron got the tattoo when he was in prison and insisted that neither of them was racist.

On Saturday, Aaron also addressed the controversy, calling his tattoo a “20-year-old mistake” in a tweet. He also said his ink doesn’t define him and if it was possible, he would get it removed.

There were also suggestions Aaron had a double lighting bolt — the symbol of the SS, the armed wing of the Nazi party — tattooed on his right arm.

Unsurprisingly, Aaron and Lee got heat on social media.

Lee is the No. 12-ranked flyweight contender and has a 9-2 record. She is a former flyweight champion in MMA promotion LFA.

Her last fight was a unanimous points decision over Veronica Macedo at a UFC Fight Night on May 19.