diff --git a/htdocs/index.html b/htdocs/index.html
index 7fb1da1..cf6847e 100644
--- a/htdocs/index.html
+++ b/htdocs/index.html
@@ -119,6 +119,9 @@
               <a href="./samples/custom_x_categorized.html">
                 Chart with category data on category axis
               </a>
+              <a href="./samples/different_category_datasets.html">
+                Chart with different category datasets
+              </a>
             </div>
             <div class="col-md-4">
               <h3>Additional Axis</h3>
diff --git a/htdocs/samples/different_category_datasets.html b/htdocs/samples/different_category_datasets.html
new file mode 100644
index 0000000..9ac07be
--- /dev/null
+++ b/htdocs/samples/different_category_datasets.html
@@ -0,0 +1,32 @@
+<html>
+  <head>
+    <link href="/css/c3.css" rel="stylesheet" type="text/css">
+  </head>
+  <body>
+    <div id="chart"></div>
+
+    <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
+    <script src="/js/c3.min.js"></script>
+    <script>
+      var chart = c3.generate({
+        data: {
+          xs: {
+            data1: "cat1",
+            data2: "cat2",
+          },
+          columns: [
+            ["cat1", "a", "b", "c", "d"],
+            ["data1", 30, 200, 100, 400],
+            ["cat2", "b", "a", "c", "d", "e", "f"],
+            ["data2", 400, 60, 200, 800, 10, 10]
+          ]
+        },
+        axis: {
+          x: {
+            type: "category"
+          }
+        }
+      });
+    </script>
+  </body>
+</html>
