makpkg failed at md5sum

I failed to build this package using makepkg.

Output of makepkg:

==> Making package: pinebookpro-audio 1-2 (Fri 20 Nov 2020 20:30:45 CET)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving sources...
  -> Found audio_jack_plugged_in
  -> Found audio_jack_plugged_in.sh
  -> Found sync.sh
  -> Found pinebookpro-audio.service
==> Validating source files with md5sums...
    audio_jack_plugged_in ... Passed
    audio_jack_plugged_in.sh ... FAILED
    sync.sh ... Passed
    pinebookpro-audio.service ... Passed
==> ERROR: One or more files did not pass the validity check!

You probably forgot to update md5sum with the last commit.

I generated and appended new md5sum array with makepkg -g >> PKGBUILD and build it that way.