angular2 checkbox ng-model not updated

I am trying a simple thing with Angular 2.0 I want a bind a model to an 'input checkbox', register the 'change' with a method, have the method executed when the checkbox state is changed and act based on the state of the model. Everything works but, when the method linked with the change event is executed, the state of the model is the contrary of what I expect, i.e. is false when the checkbox is selected, is true when the checkbox is unselected. Here is the code snippet;

<input value={{object.name}} type="checkbox" [(ng-model)]="object.selected" (change)="onChange(object.selected)">

Any idea about what I am doing wrong?