Issue with ember.js when querying for multiple records

I have no issues using store.findRecord() and store.findAll() but when I try and use store.query() it always returns everything in the model, not a subset like I'm expecting.

For example, I have 100 records in my person model and when I use the example on the ember.js website in my route:

    model: function() {
        this.get('store').query('person', {
          filter: {
            name: 'Peter'
          }
        }).then(function(peters) {
          return peters
        });
    }

All 100 records are returned to my template instead of only those with the name 'Peter'.

Can someone tell me what I'm doing wrong?

Thank you.