diff --git a/lib/getChangeset.js b/lib/getChangeset.js
index 8d60303..123b4eb 100644
--- a/lib/getChangeset.js
+++ b/lib/getChangeset.js
@@ -82,9 +82,8 @@ function getDataParam(c) {
   return (
     '[out:xml][adiff:%22' +
     c.from.toString() +
-    ',%22,%22' +
-    c.to.toString() +
-    '%22];(node(bbox)(changed);way(bbox)(changed);relation(bbox)(changed););out%20meta%20geom(bbox);'
+    (c.to ? '%22,%22' + c.to.toString() : '') +
+    '%22];nwr(bbox)(changed);out%20meta%20geom(bbox);'
   );
 }