diff --git a/js/plugin/Routing.js b/js/plugin/Routing.js
index 7a2a423..8dc4761 100644
--- a/js/plugin/Routing.js
+++ b/js/plugin/Routing.js
@@ -67,12 +67,12 @@ BR.Routing = L.Routing.extend({
 
         // hide trailer over controls and outside map
         function show() {
-            if (this._hidden) {
+            if (this._hidden && this._parent._waypoints._first) {
                 this._show();
             }
         }
         function hide() {
-            if (!this._hidden) {
+            if (!this._hidden && this._parent._waypoints._first) {
                 this._hide();
             }
         }