1 files changed, 2 insertions, 3 deletions

diff --git a/lisp/vc-dispatcher.el b/lisp/vc-dispatcher.el
index 7179d77e8f4..6bd43cb2644 100644
--- a/lisp/vc-dispatcher.el
+++ b/lisp/vc-dispatcher.el
@@ -1057,15 +1057,14 @@ If a prefix argument is given, move by that many lines."
 
 (defun vc-dir-children-marked-p (arg)
   ;; Return nil if none of the children of arg is marked.
-  (let* ((argdir (vc-dir-node-directory arg))
-         (arglen (length argdir))
+  (let* ((argdir-re (concat "\\`" (regexp-quote (vc-dir-node-directory arg))))
          (is-child t)
          (crt arg)
          data dir)
     (while (and is-child (setq crt (ewoc-next vc-ewoc crt)))
       (setq data (ewoc-data crt))
       (setq dir (vc-dir-node-directory crt))
-      (if (string-equal argdir (substring dir 0 arglen))
+      (if (string-match argdir-re dir)
           (when (vc-dir-fileinfo->marked data)
             (error "Cannot mark `%s', child `%s' marked"
                    (vc-dir-fileinfo->name (ewoc-data arg))