Question about postgresql.conf memory settings

Hi,
I am a little confused on some of the memory setting in the postgresql.conf

for example:

maintenance_work_mem = 32768    # min 1024, size in KB

is the 32768 bytes or KB

The comment says size is in KB, so I would assume this is actually 32768 
* 1024

or is it really 32k?

If it is 32k shouldn't the comment say size in bytes not KB?

-- 
Tony