Updated

NCIS” star Mark Harmon’s pooch may be in the dog house.

Harmon’s three-year-old adopted pit bull mix, Dave, bit a crew member on the set of the hit CBS series last week, TMZ reports.

Dave was reportedly roughhousing with a crew member who’d played with the dog before, when he became frightened and attacked in self-defense.

Sources told TMZ that the unnamed crew member needed 16 stitches, but is fine and returned to the set without any issues.

Dave was a frequent guest on the dog-friendly set, which also hosted other cast and crew member’s canine pals, but hasn’t returned to the set since the incident.

Harmon’s rep didn’t immediately return a request for comment.

This article originally appeared in the New York Post's Page Six.