diff --git a/demo/sejam2/simple/world.js b/demo/sejam2/simple/world.js
index 1117b19..2bd1a9a 100644
--- a/demo/sejam2/simple/world.js
+++ b/demo/sejam2/simple/world.js
@@ -1,9 +1,11 @@
 // World agent controlling the simulation and collection monitoring data
 function (options) {
   this.monitor=[]
+  this.testnode=1
   this.act = {
     init: function () {
       log('Initializing ...');
+      this.testnode=simu.getNode('beacon 3');
       // csv.write(file,header,data:[[]]|[{}],callback?,verbose?)
     },
     percept: function () {