California institution, Mrs. Knott’s Chicken Dinner Restaurant, reopened Thursday night after its permit was restored following treatment for a cockroach infestation, theme park officials said.

Jason Soyster, a spokesman for Knott’s Berry Farm, referred to the infestation as an “isolated structural incident” and said the restaurant was reopened at about 9:30 p.m.

The eatery had its permit suspended at about 2 p.m.