Sherlock’s every-other-year release pattern has fallen apart. At a recent event, Sherlock showrunner Steven Moffat revealed filming on series 4 has been pushed to 2016.

Last July the BBC announced that filming on Sherlock series 4 would take place during 2015 so the series could air at the end of this year or the very beginning of the next, but filming is now slated for spring 2016, according to comments Moffat made at a BAFTA winners event over the weekend (via Digital Spy.)

This is sad news on a variety of levels, but mostly because of this one: Sherlock has premiered a new season every two years since its inception (July 2010, January 2012, and January 2014 respectively), meaning the gap between series 3 and series 4 will be our longest yet.

Moffat didn’t share why filming has been pushed, but one could assume it has to do with the busy schedules of Benedict Cumberbatch and Martin Freeman. The two actors have a slew of projects in the pipeline including separate Marvel projects (Doctor Strange and Captain America: Civil War respectively). This’ll come as no surprise to longtime fans, because their work schedules have been blamed for the gaps in between seasons in the past.

Although we have to wait longer than expected, there is a bit of good news: The cast and crew of Sherlock shot a special episode earlier this year which is expected to air this Christmas. While plot details are still under wraps, Moffat said in March that the self-contained episode takes place during London’s Victorian era.

We don’t know when Sherlock series 4 will be airing, but with filming beginning in spring 2016, it’s likely we’ll be waiting until the second half of the year at the earliest to see the three new episodes on television.

In other words, we still have a long wait.