diff --git a/src/core/js/ext_map.js b/src/core/js/ext_map.js
index 7e52270e5768cb20bad5e0302bdd186a9d0f0091..231515f77e677ef38f5aa66b8db2859288bde5bf 100644
--- a/src/core/js/ext_map.js
+++ b/src/core/js/ext_map.js
@@ -1683,7 +1683,7 @@ var caosdb_map = new function () {
                 // TODO refactor and extract function for map controls and
                 // merge with similar code from the select_handler.
                 var button = L.DomUtil.create("div",
-                    "leaflet-bar leaflet-control leaflet-control-custom"
+                    "leaflet-bar leaflet-control leaflet-control-custom caosdb-f-map-change-view-btn"
                 );
                 button.title = "Change the view";
                 // TODO move to css