Pope Francis has a message for Catholics: Put down your smartphone during Mass.

During a general audience at St. Peter’s Square in Vatican City on Wednesday morning, Francis chastised Catholics who use their phones during Mass.

“At some point, the priest during the Mass says, ‘Lift up your hearts,’” the pontiff said. “He does not say, ‘Lift up your cellphones to take pictures.’”

The remarks drew applause, particularly after Francis called the use of phones during services a “very ugly thing.”

General audiences, held regularly on Wednesdays, usually consist of short teachings and readings. While the rest of Francis’s message was focused on other matters, he was clear on the use of cellphones at Mass.