CasperJS thenOpen is not opening page

I have the following code in casper :

var casper = require('casper').create();
var LOGIN = 'username';
var PASS = 'password';

casper.start('https://www.site.com/', function() {
    this.echo(this.getTitle());
    this.capture('before.png');

   this.fillSelectors('#login', {
        '#login' : LOGIN,
        '#password' : PASS
    },true); 

     console.log('wait');

    this.wait(10000, function(){
        console.log("waited 10 seconds");
        this.echo(this.getTitle());
        this.thenOpen('http://google.com/', function {
            this.echo('loading google');
        });
     });
 });
casper.run();

Running it produces the correct output

title wait waited 10 seconds logged in title

However this section :
this.echo('loading google');

is never executed. What am I doing wrong??