diff --git a/dev/demo/all.html b/dev/demo/all.html
index 85d4d2e..ff21908 100644
--- a/dev/demo/all.html
+++ b/dev/demo/all.html
@@ -47,7 +47,7 @@
 
 	  <!-- Todo: open tutorial - like openTutorial() -->
 	  <a href="doc/faq" class="question"><span>Question</span></a>
-	  <a href="about.html" title="Tutorial" class="tutorial" id="view-tutorial"><span>Tutorial</span></a>
+	  <a href="tutorial.html" title="Tutorial" class="tutorial" id="view-tutorial"><span>Tutorial</span></a>
 	</div>
       </form>
     </header>