diff --git a/app/views/site/_id.html.erb b/app/views/site/_id.html.erb
index 757326ec3d..d93ee091e9 100644
--- a/app/views/site/_id.html.erb
+++ b/app/views/site/_id.html.erb
@@ -10,7 +10,7 @@
       params.id = mapParams.object.type[0] + mapParams.object.id;
       mapParams = OSM.parseHash(location.hash);
       if (mapParams.center) {
-        params.map = mapParams.zoom + '/' + mapParams.center.lat + '/' + mapParams.center.lon;
+        params.map = mapParams.zoom + '/' + mapParams.center.lat + '/' + mapParams.center.lng;
       }
     } else {
 <% if @lat && @lon -%>