Jquery Nice scroll not working

I am using Jquery nice Scroll bar for div, but when content of div increases dynamically its not showing scroll bar. Windows default scroll bar works fine if i remove nice scroll. Can anyone help me to solve this problem?

Html

<div id="div-to-scroll">
</div>

Script

$(document).ready(function(e) {
    var nice = $("#div-to-scroll").getNiceScroll();
    $("#div-to-scroll").niceScroll();
    $("#div-to-scroll").getNiceScroll().resize();
});

this is my code sample.