1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/cus-edit.el b/lisp/cus-edit.el
index 655b3c83bf6..43a8ca53ade 100644
--- a/lisp/cus-edit.el
+++ b/lisp/cus-edit.el
@@ -1186,7 +1186,7 @@ Otherwise, look up symbol in `custom-guess-type-alist'."
                    'sexp))
          (options (get symbol 'custom-options))
          (tmp (if (listp type)
-                  (copy-list type)
+                  (copy-sequence type)
                 (list type))))
     (when options
       (widget-put tmp :options options))