Problem with iRule

when HTTP_REQUEST {
   if {[string match {*[A-Z]*} [HTTP::path]]}{
      if {[HTTP::query] equals ""}{
         HTTP::redirect "http://[HTTP::host][string tolower [HTTP::path]]"
      } else { 
         HTTP::redirect "http://[HTTP::host][string tolower [HTTP::path]]?[HTTP::query]"
      }
   }
}