How to assign balloon numbers to sub-assembly items

I have a BOM in a drawing that I'm working on.

I have the BOM set up as "indented".

When I put a balloon on a part that's in a sub-assembly, the balloon number is that of the sub-assembly, not of the part that's in the sub-assembly like I want it to be in this case.

How is this done?

Thank you.

SolidworksBill Of Materials