diff --git a/runbot/templates/build_stats.xml b/runbot/templates/build_stats.xml
index 207c55e0..4a990e1b 100644
--- a/runbot/templates/build_stats.xml
+++ b/runbot/templates/build_stats.xml
@@ -129,6 +129,7 @@
           </div>
         </div>
       </t>
+      <script type="text/javascript" src="/web/static/lib/Chart/Chart.js"></script>
       <script type="text/javascript" src="/runbot/static/src/js/stats.js"></script>
     </template>
   </data>