diff --git a/test/demo/basic.html b/test/demo/basic.html
index e238e5e1..44bf70a4 100644
--- a/test/demo/basic.html
+++ b/test/demo/basic.html
@@ -25,9 +25,9 @@
             id: "contentDiv",
             prefixUrl: "../../build/openseadragon/images/",
             tileSources: "../data/testpattern.dzi",
-            showNavigator:true
+            showNavigator:true,
+            panHorizontal: false
         });
-
     </script>
 </body>
 </html>