Проблема с bootstrap-select

При добавление bootstrap css, меняется дизайн шаблона, можно что то сделать?

Нормальный вид

При добавление этих файлов

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">

      <select id="lunchBegins" class="selectpicker" data-live-search="true" data-live-search-style="begins" title="Please select a lunch ...">
    <option>Hot Dog, Fries and a Soda</option>
    <option>Burger, Shake and a Smile</option>
    <option>Sugar, Spice and all things nice</option>
    <option>Baby Back Ribs</option>
    <option>A really really long option made to illustrate an issue with the live search in an inline form</option>
  </select>