(lookup-words): Cope with null lookup-dict.

1 files changed, 3 insertions, 2 deletions

diff --git a/lisp/textmodes/ispell.el b/lisp/textmodes/ispell.el
index 9efe8c9ee33..249cbe28972 100644
--- a/lisp/textmodes/ispell.el
+++ b/lisp/textmodes/ispell.el
@@ -1240,7 +1240,7 @@ pass it the output of the last ispell invocation."
     ;; terrible kludge, and it's a bit slow, but it does get the work done.)
     (let ((cmd (aref string 0))
           ;; The following commands are not passed to Ispell until
-          ;; we have a *reall* reason to invoke it.
+          ;; we have a *real* reason to invoke it.
           (cmds-to-defer '(?* ?@ ?~ ?+ ?- ?! ?%))
           (default-major-mode 'fundamental-mode)
           (session-buf ispell-session-buffer)
@@ -1929,7 +1929,8 @@ Optional second argument contains the dictionary to use; the default is
             (while (search-backward "*" nil t) (insert "."))
             (setq word (buffer-string))
             (erase-buffer))
-          (setq status (call-process prog nil t nil args word lookup-dict))
+          ;; Use apply since `lookup-dict' can be nil.
+          (setq status (apply #'call-process prog nil t nil args word lookup-dict))
           ;; grep returns status 1 and no output when word not found, which
           ;; is a perfectly normal thing.
           (if (stringp status)