Lining a skirt question?

I have a pattern for a fairly simple skirt I've made a million times out of cottons and suiting fabrics (it's a good shape for me). I found a really neat silk brocade on sale, and bought enough to make a skirt. Thing is, I usually zig zag along raw edges to keep them from raveling when I use cottons or suitings (my machine does not do a serging stitch). I have worked with silk brocades before (my wedding dress, and several cocktail dresses) and zig zagging the raw edges bunches it up. I have fully lined other projects Ive used silk brocades for. The skirt pattern I'm making doesn't call for a lining, but I will need to make one for this fabric (using a light weight muslin). My question is, should I attach the lining at the hem, so there is no loose threads from the brocade that will show?