Production on ABC's Castle currently being delayed due to a dispute with star Nathan Fillion, but it's not that the actor is holding out for more money.
He just wants a four-day work week.
The actor did not show up for work Friday as he continues to push for this production change, though he was back on set Tuesday, reports say.
It's unclear how long production will be affected or whether he is also expected to take this Friday off, but this has been a point of contention for awhile.
While ABC and producers want to keep Fillion happy, they are reluctant to shift to a four-day work week, given that he is in almost every scene.
He hasn't taken the feud public, however, Tweeting about Castle Season 6 guest star Lisa Edelstein and posting a photo of show crew members.
Castle is still set to return Monday, September 23 ... we hope.