--- a/ckanext/ga_report/templates/ga_report/ga_util.html
+++ b/ckanext/ga_report/templates/ga_report/ga_util.html
@@ -30,7 +30,7 @@
  </table>
 
 
-<div py:def="rickshaw_graph(items_json,id,debug=False)">
+<div py:def="rickshaw_graph(items_json,id)">
   <div id="chart_container_$id" class="rickshaw_chart_container">
     <div id="y_axis_$id" class="rickshaw_y_axis"></div>
     <div id="chart_$id" class="rickshaw_chart"></div>
@@ -38,7 +38,7 @@
     <script type="text/javascript">
       $(function() {
           var series = ${items_json};
-          <py:if test="debug">console.log(series);</py:if>
+          Rickshaw.Series.zeroFill(series);
           var palette = new Rickshaw.Color.Palette( { scheme: 'spectrum2001' } );
           $.each(series, function(i, object) {
               object['color'] = palette.color();