control-label and help-block not vertically aligned in form-group

Created by: fulldecent

I have a form. In some rows there are labels and then buttons. These line up properly. Here is a label and a help-block which do not line up correctly vertically.

http://jsbin.com/qihapovunavo/1/edit?html,output

  <form class="form-horizontal" role="form">
    <div class="form-group">
      <label class="col-sm-2 control-label">Access link</label>
      <p class="col-sm-10 help-block">Here is some help</p>
    </div>
  </form>