Index: /applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/tilesources/OsmTileSource.java
===================================================================
--- /applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/tilesources/OsmTileSource.java	(revision 33313)
+++ /applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/tilesources/OsmTileSource.java	(revision 33314)
@@ -71,5 +71,6 @@
      * The "Transport Map" OSM tile source.
      *
-     * Template for thunderforest.com
+     * Template for thunderforest.com.
+     * Requires registration of an API key (see {@link #API_KEY}).
      */
     public static class TransportMap extends AbstractOsmTileSource {
@@ -104,5 +105,5 @@
         @Override
         public String getTileUrl(int zoom, int tilex, int tiley) throws IOException {
-            return this.getBaseUrl() + getTilePath(zoom, tilex, tiley); // + "?apikey=" + API_KEY;
+            return this.getBaseUrl() + getTilePath(zoom, tilex, tiley) + "?apikey=" + API_KEY;
         }