President Obama admitted in a new interview that the frustrations of being the leader of the free world sometimes get him to slip out of his no-drama persona.

“I curse more than I should,” Obama told historian Doris Kearns Goodwin in an interview published in Vanity Fair . “And I find myself cursing more in this office than I had in my previous life.”

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The president said the one saving grace is that his top advisers use worse language than he does.

Obama, who has frequently offered strident criticism of his political rivals, also conceded that he “can be much more sarcastic and I think sometimes withering in my assessments of things than I allow to show in my public life.”