diff --git a/views/charts_plugin_style_chart.inc b/views/charts_plugin_style_chart.inc
index f991d15..a6171e5 100644
--- a/views/charts_plugin_style_chart.inc
+++ b/views/charts_plugin_style_chart.inc
@@ -321,6 +321,18 @@ class charts_plugin_style_chart extends views_plugin_style {
       // Merge in the child chart data.
       foreach (element_children($subchart) as $key) {
         if ($subchart[$key]['#type'] === 'chart_data') {
+          $data = array();
+          $subchart_xaxis_labels = $subchart['xaxis']['#labels'];
+          foreach ($chart['xaxis']['#labels'] as $id => $label) {
+            $index = array_search($label, $subchart_xaxis_labels);
+            if ($index === FALSE) {
+              $data[$id] = 0;
+            }
+            else {
+              $data[$id] = $subchart[$key]['#data'][$index];
+            }
+          }
+          $subchart[$key]['#data'] = $data;
           $chart[$key] = $subchart[$key];
           // If the subchart is a different type than the parent chart, set
           // the #chart_type property on the individual chart data elements.