diff --git a/lisp/vc/vc-dispatcher.el b/lisp/vc/vc-dispatcher.el
index 2ea22f0622f..bdc687179cd 100644
--- a/lisp/vc/vc-dispatcher.el
+++ b/lisp/vc/vc-dispatcher.el
@@ -861,7 +861,7 @@ the buffer contents as a comment."
   ;; Check and record the comment, if any.
   (unless nocomment
     (run-hooks 'vc-logentry-check-hook))
-  ;; Must pass NOT-ESSENTIAL nil because we later call
+  ;; Must pass NOT-ESSENTIAL non-nil because we later call
   ;; `vc-resynch-buffer' with NOQUERY non-nil.
   (vc-buffer-sync-fileset (list log-edit-vc-backend vc-log-fileset))
   (unless vc-log-operation