Adjust Room Outer Boundaries

I just noticed that I have a couple of rooms that show the outside boundary well inside the wall, leaving a gap that is "outside" the room. This is an outer wall boundary, not a boundary between rooms. I assume that area was blocked when the Matic first mapped the room.

How can I adjust this? If there is an option to do so, I have not found it. Or will the Matic figure it out?