Do you care for the output of the spec? (--format documentation) If you do, this is certainly making the output ugly. You're probably having something like:
"The body should be aisng8svgildrlvgnldjnvglixjnlikvgmlikrjgmvlkjmrgivjmoig"
When you wanted:
"The response should be a proper CSV"

You got the idea.