Custom Base with 1.7.7[question]

Basically I created a base for some players on my server who requested it, it's a "hero" base where they help out other players, blah blah blah.

Well it worked perfectly before 1.7.7, but now my server is 1.7.7 zombies spawn all over the place at their base. While before none spawned there at all. Seeing as zeds are such a threat now, it's quiet annoying.
So what I'm asking is there anyway to prevent them spawning in certain areas? Is it a certain building causing this now, or are they being spawned differently in 1.7.7.

Thanks.
 
Back
Top