diff --git a/examples/maps/map_editor/js/example.js b/examples/maps/map_editor/js/example.js
index e9e9e10d..317c05b3 100644
--- a/examples/maps/map_editor/js/example.js
+++ b/examples/maps/map_editor/js/example.js
@@ -9,8 +9,8 @@ Ox.load(['UI', 'Geo'], function() {
     var places = $storage('places') || []
     var $map = Ox.MapEditor({
             addPlace: function(place, callback) {
-                console.log("addPlace", place)
-                place.id = Ox.encodeBase26(Ox.uid())
+                place.id = Ox.encodeBase26((places.length ? Ox.max(places.map(p => Ox.decodeBase26(p.id))) : 0) + 1)
+                console.log("addPlace", place.id, place)
                 places.push(place)
                 $storage("places", places)
                 $map.options({