1 files changed, 2 insertions, 1 deletions
diff --git a/js/app.js b/js/app.js
index 1b16853af..796ffcf97 100644
--- a/js/app.js
+++ b/js/app.js
@@ -2249,7 +2249,8 @@
         revert: true,
         stack: '> li',
         zIndex: 1000,
-        axis: 'y'
+        axis: 'y',
+        helper: 'clone'
       };
       return $(elm).draggable(details);
     };