diff --git a/src/zoomifytilesource.js b/src/zoomifytilesource.js
index eb843b97..7e921e6c 100644
--- a/src/zoomifytilesource.js
+++ b/src/zoomifytilesource.js
@@ -110,3 +110,4 @@
     });
 
 }(OpenSeadragon));
+