diff --git a/script.js b/script.js
index 31969d8..0ae74ba 100644
--- a/script.js
+++ b/script.js
@@ -67,6 +67,7 @@ jQuery(function () {
         captionHTML: true, // we allow HTML and double escape in the formatter
         alertError: false,
         fileExt: false,
+        uniqueImages: false
     });
 });