diff --git a/js/src/export.js b/js/src/export.js
index e1600d1b34..4e26c2f5d5 100644
--- a/js/src/export.js
+++ b/js/src/export.js
@@ -869,12 +869,17 @@ Export.aliasToggleRow = function (elm) {
     }
 };
 
+Export.aliasRow = null;
+
 Export.addAlias = function (type, name, field, value) {
     if (value === '') {
         return;
     }
 
-    var row = $('#alias_data tfoot tr').clone();
+    if (Export.aliasRow === null) {
+        Export.aliasRow = $('#alias_data tfoot tr');
+    }
+    var row = Export.aliasRow.clone();
     row.find('th').text(type);
     row.find('td').first().text(name);
     row.find('input').attr('name', field);