slick onhover css doesn 27t work

1$('.fade').slick({
2  dots: true,
3  infinite: true,
4  speed: 500,
5  fade: true,
6  slide: '> div',
7  cssEase: 'linear'
8});

1$('.slick-slide').hover(
2  function(){ $(this).addClass('hover') },
3  function(){ $(this).removeClass('hover') }
4)
5
6.slick-slide.hover {
7  /*something*/
8}