Denny’s is planning to close nearly 30 more restaurants than previously announced as stubborn inflation threatens the 72-year-old chain’s survival. During a call with investors earlier this week, Robert Verostek, the company’s chief financial officer, said the Denny’s is set to shutter as many as 90 restaurants this year.

Last year it said it would be shutting down 150 of its locations — about 10% — in unprofitable areas. Now, the diner chain is closing an additional 30 locations bringing to total to 180.