--- ffap.el.~1.85.~	2009-09-22 09:11:04.000000000 +1000
+++ ffap.el	2009-09-22 09:13:57.000000000 +1000
@@ -951,6 +951,16 @@
 		      "/pub/gnu/emacs/elisp-archive/"))
     (substring name 2))))
 
+(defcustom ffap-rfc-path
+  (concat (ffap-host-to-filename "ftp.rfc-editor.org") "/in-notes/rfc%s.txt")
+  "A `format' string making a filename for RFC documents.
+This can be an ange-ftp or tramp remote filename to download, or
+a local filename if you have full set of RFCs locally.  See also
+`ffap-rfc-directories'."
+  :type 'string
+  :version "23.1"
+  :group 'ffap)
+
 (defcustom ffap-rfc-directories nil
   "A list of directories to look for RFC files.
 If a given RFC isn't in these then `ffap-rfc-path' is offered."
@@ -958,9 +968,6 @@
   :version "23.1"
   :group 'ffap)
 
-(defvar ffap-rfc-path
-  (concat (ffap-host-to-filename "ftp.rfc-editor.org") "/in-notes/rfc%s.txt"))
-
 (defun ffap-rfc (name)
   (let ((num (match-string 1 name)))
     (or (ffap-locate-file (format "rfc%s.txt" num) t ffap-rfc-directories)