That fast food may stick to your hips a little longer than you thought.

During a home remodeling project in suburban Crystal Lake, a couple found decades old McDonald’s wrappers and a bag of still intact French fries inside the walls of their bathroom.

The Jones family say their home was built in 1959 and a franchise of the popular fast food restaurant opened up around that time. As to how those fries survived the test of time?

“My thoughts are that it was likely the salt that dried out and preserved the fries, not actual preservatives,” said Grace Jones, “Or at least that’s what I’m telling myself.”