diff --git a/web/js/map.js b/web/js/map.js
index f977b137..48324ac3 100644
--- a/web/js/map.js
+++ b/web/js/map.js
@@ -3,6 +3,7 @@
 
 var componentconstructors = {};
 var maptypes = {};
+var map = null;	// Leaflet assumes top-level 'map'...
 
 componentconstructors['testcomponent'] = function(dynmap, configuration) {
 	console.log('initialize');
@@ -126,6 +127,7 @@ DynMap.prototype = {
 				return (1 << zoom);
 			}
 		});
+		window.map = map; // Placate Leaflet need for top-level 'map'....
 		
 		map.zoom_changed = function() {
 			me.maptype.updateTileSize(me.map.zoom);