make-kpkg doesn't like my edited .config file

[Renaud Dreyer <rdreyer@math.berkeley.edu>]

After going through make menuconfig, I manually edit my .config file to
change:

CONFIG_PARIDE_PARPORT=y

ro:

# CONFIG_PARIDE_PARPORT is not set

since my 7300/200 doesn't have IDE and there's no way to remove this
option using menuconfig or xconfig.

However, when I run make-kpkg to generate the kernel package, it
immediately returns my edited .config to its pre-edited status! Any
idea how I can prevent it from doing that? Thanks,

           Renaud