What should be done in abcl to be able to load a lisp file containing non ascii characters encoded in utf-8?

CL-USER(3): (load "test.lisp") Error loading /home/pjb/test.lisp at line 2 (offset 46) #<THREAD "interpreter" {74CB02}>: Debugger invoked on condition of type STREAM-ERROR Input value 0xffc3 is malformed while recoding with charset US-ASCII Restarts: 0: TOP-LEVEL Return to top level. [1] CL-USER(4): (lisp-implementation-version) "0.20.0"

test.lisp is: ------------------------------------------------------------------------ ;; -*- mode:lisp;coding:utf-8 -*- (defvar *a* "é") ------------------------------------------------------------------------