1 files changed, 2 insertions, 0 deletions

diff --git a/lisp/cus-start.el b/lisp/cus-start.el
index 7289533a273..bd03b952302 100644
--- a/lisp/cus-start.el
+++ b/lisp/cus-start.el
@@ -134,6 +134,8 @@
              (completion-auto-help minibuffer boolean)
              (enable-recursive-minibuffers minibuffer boolean)
              (minibuffer-auto-raise minibuffer boolean)
+             ;; msdos.c
+             (dos-unsupported-char-glyph display integer)
              ;; process.c
              (delete-exited-processes processes-basics boolean)
              ;; syntax.c