diff --git a/htdocs/samples/chart_combination.html b/htdocs/samples/chart_combination.html
index bd8adbc..8fb8b71 100644
--- a/htdocs/samples/chart_combination.html
+++ b/htdocs/samples/chart_combination.html
@@ -6,7 +6,7 @@
     <div id="chart"></div>
 
     <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
-    <script src="../js/c3.js"></script>
+    <script src="/js/c3.min.js"></script>
     <script>
       var chart = c3.generate({
         data: {