diff --git a/js/id/presets/preset.js b/js/id/presets/preset.js
index 95c1f7966..dded14da8 100644
--- a/js/id/presets/preset.js
+++ b/js/id/presets/preset.js
@@ -96,7 +96,7 @@ iD.presets.Preset = function(id, preset, fields) {
         // Add area=yes if necessary
         for (k in applyTags) {
             if (geometry === 'area' && !(k in iD.areaKeys))
-                tags['area'] = 'yes';
+                tags.area = 'yes';
             break;
         }