diff --git a/js/id/ui/preset.js b/js/id/ui/preset.js
index 01ff7501f..d52a820e8 100644
--- a/js/id/ui/preset.js
+++ b/js/id/ui/preset.js
@@ -76,7 +76,7 @@ iD.ui.preset = function(context, entity, preset) {
         d3.event.preventDefault();
         var t = {};
         field.keys.forEach(function(key) {
-            t[key] = original ? original.tags[key] : undefined;
+            t[key] = original ? original.tags[key] || '' : '';
         });
         event.change(t);
     }