Error attempting to use id_filename with a flac file

[jparris]

m = magic.Magic()
m.id_filename("/Users/jparris/02 - Hard Times Come Again No More.mp3")
'Audio file with ID3 version 2.3.0'
m.id_filename("/Users/jparris/foo.flac")
Traceback (most recent call last):
File "", line 1, in
File "/Library/Python/2.7/site-packages/magic/identify.py", line 29, in wrapper
return func(self, _args, *_kwargs)
File "/Library/Python/2.7/site-packages/magic/compatability.py", line 30, in wrapper
return func(_encoder(args), *_kwargs)
File "/Library/Python/2.7/site-packages/magic/identify.py", line 112, in id_filename
return api.magic_file(self.cookie, filename)
File "/Library/Python/2.7/site-packages/magic/api.py", line 58, in errcheck_null
raise MagicError(errno, error)
magic.api.MagicError: [Errno 0] line 470: softmagic.c, 481: format , %u samples' does not match with %lu'

But if the MAGIC_MIME_TYPE flag is set everything works fine
m.close()
m = magic.Magic(flags=magic.MAGIC_MIME_TYPE)
m.id_filename("/Users/jparris/foo.flac")
'audio/x-flac'

Versions

• libmagic-5.18 installed via brew
• filemagic-1.6 installed via pip