diff --git a/js/router/BRouter.js b/js/router/BRouter.js
index 5f47765..1b49234 100644
--- a/js/router/BRouter.js
+++ b/js/router/BRouter.js
@@ -10,9 +10,10 @@ L.BRouter = L.Class.extend({
     },
     
     options: {
-        format: 'geojson'
     },
 
+    format: 'geojson',
+
     initialize: function (options) {
         L.setOptions(this, options);
 
@@ -41,7 +42,7 @@ L.BRouter = L.Class.extend({
             nogos: this._getNogosString(this.options.nogos),
             profile: this.options.profile,
             alternativeidx: this.options.alternative,
-            format: format || this.options.format
+            format: format || this.format
         };
     },
 
@@ -59,9 +60,6 @@ L.BRouter = L.Class.extend({
         if (params.profile) {
             opts.profile = params.profile;
         }
-        if (params.format) {
-            opts.format = params.format;
-        }
         return opts;
     },