diff --git a/lisp/org-publish.el b/lisp/org-publish.el
index e77b1a0..fefd50d 100644
--- a/lisp/org-publish.el
+++ b/lisp/org-publish.el
@@ -352,6 +352,7 @@ This splices all the components into the list."
 (defvar sitemap-alphabetically)
 (defvar sitemap-sort-folders)
 (defvar sitemap-ignore-case)
+(defvar sitemap-requested)
 (defun org-publish-compare-directory-files (a b)
   "Predicate for `sort', that sorts folders-first/last and
 eventually alphabetically."