diff --git a/dashboard-ui/thirdparty/jquery.unveil-custom.js b/dashboard-ui/thirdparty/jquery.unveil-custom.js
index 51499d365b..410b457358 100644
--- a/dashboard-ui/thirdparty/jquery.unveil-custom.js
+++ b/dashboard-ui/thirdparty/jquery.unveil-custom.js
@@ -103,7 +103,6 @@
         var images = elems;
 
         unveilId++;
-        var eventNamespace = 'unveil' + unveilId;
 
         var parents = [];
         if (parent) {