Classifieds plugin: Overriding style-bp-classifieds.css in Child theme

This is perhaps more of a css question, I want to override parts of the style-bp-classifieds.css. I have a style.css in my own theme directory, but changes to that (using identifiers in style-bp-classifieds.css) don't seem to make any difference. Do I need to create a new style-bp-classifieds.css in my child theme directory?