`defn` errors if the body has multiple forms

[vemv]

The following fails unless I remove the 2:

(speced/defn ident->class
   ;; "Converts an 'ident' (as per clojure.core) to a html class."
  [^ident? i]
  (-> i symbol str (string/replace #"[\.|/]" "-"))
  2)

Workaround: wrap in let, do, etc