diff --git a/README.org b/README.org
index d2b8d15..fd05570 100644
--- a/README.org
+++ b/README.org
@@ -72,6 +72,7 @@
      #+BEGIN_SRC org
        ,#+NAME: my-tree
        ,#+BEGIN_SRC emacs-lisp :noweb yes :exports none
+         <<process-tree>>
          (defvar mytree
            '("Tree"
              ("First child"
@@ -79,6 +80,7 @@
              ("Second child"
               ("Second child’s first child")
               ("Second child’s second child"))))
+         (tree-to-dot mytree)
        ,#+END_SRC
      #+END_SRC