diff options
| -rw-r--r-- | lisp/shell.el | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lisp/shell.el b/lisp/shell.el index c28f1649eb6..1b8c9da313a 100644 --- a/lisp/shell.el +++ b/lisp/shell.el @@ -235,7 +235,8 @@ This mirrors the optional behavior of tcsh." "[]a-zA-Z^_`\\[\\\\]:" nil) "*If non-nil, is regexp used to track drive changes." - :type 'regexp + :type '(choice regexp + (const nil)) :group 'shell-directories) (defcustom explicit-shell-file-name nil |