Goodman Games

I'm importing Temple of Elemental Evil Reincarnated (ToEER). I come to room 222 on the second level, but the next entry is 222a. I do not see it on the map. I think it should go where I have put a red circle on it.

Can anyone give me a yes or no? If not, where should it go?
Thank You,
Mike

222A is in the south west corner of the map. It is written in the hallway