diff --git a/chapter2/mysite/myapp/static/scripts/trend.js b/chapter2/mysite/myapp/static/scripts/trend.js
index f0de9ea..b329dcb 100755
--- a/chapter2/mysite/myapp/static/scripts/trend.js
+++ b/chapter2/mysite/myapp/static/scripts/trend.js
@@ -224,8 +224,9 @@ $(function(){
    var histogramChart3_names = [];
    var histogramChart3_datas =[];
    for(var key in top10_sells){
-    histogramChart3_names.push(key['product_name']);
-    histogramChart3_datas.push(key['good_c']);
+    var data = top10_sells[key];
+    histogramChart3_names.push(data['product_name']);
+    histogramChart3_datas.push(data['good_c']);
    }