Butterknife Fragment Injecting Views Not Working?

Can anyone explain why my View element (ListView) is null with the following code:

public class NewsFragment extends Fragment {

    @InjectView(R.id.news_listView) ListView lv;

    @Override
    public View onCreateView(LayoutInflater inflater, 
                             ViewGroup container, 
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.news_layout, container, false);
        ButterKnife.inject(this, view);
        return view;
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        if (lv == null) {
            UIHelper.showAlert("null?");
        }
    }
}

Am I doing something wrong or is there something wrong with the library, because I pasted the example code to my app to get it working, but it's not working here... Any help is much appreciated!