Is it prohabited to work in IT dept. of a beer brewing company.

assalaamualikum,

 I am working as a software engineer for a software services company. Recently I got a project which happens to be of client which is in beer manufacturing. I am little bit concerned whether I should go ahead or not. Though I have nothing to do with the beer manufacturing however the software where I am contributing will be used by the sales people of that company. Please advice what should I do.

 Thanks,

Rafeeq