solidworks 2013 rib tool

i just updated to 2013 and have been playing with the new features. one that caught my eye was the rib feature. it adds support ribs to parts. this would save some steps in my process if not for one problem. the tool merges the rib with the parent part to become one solid part. is there any way to use the rib tool that will leave a gap between it and the part that way i get two seperate bodies?

solidworks 2013 sp 0

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