diff --git a/editor/svg-editor.html b/editor/svg-editor.html
index 2839b9b0..2486f933 100644
--- a/editor/svg-editor.html
+++ b/editor/svg-editor.html
@@ -47,6 +47,7 @@
 
 <!-- you can load extensions here -->
 <!-- <script type="text/javascript" src="extensions/ext-helloworld.js"></script> -->
+<script type="text/javascript" src="extensions/ext-panning.js"></script>
 
 <!-- always minified scripts -->
 <script type="text/javascript" src="jquery-ui/jquery-ui-1.8.17.custom.min.js"></script>