Former first lady Michelle Obama accidentally used an expletive while talking about her marriage to former President Barack Obama during a book tour stop for her best-selling memoir, Becoming.

“Marriage still ain’t equal, y’all,” Obama said Saturday night at an event in Brooklyn’s Barclays Center, according to Vanity Fair. “It ain’t equal. I tell women that whole ‘you can have it all’ — mmm, nope, not at the same time, that’s a lie. It’s not always enough to lean in because that shit doesn’t work.”