How to check checkbox on first click

I want to check checkboxes ”Vorträge”, ”Reisen”, ”Exkursionen” on click on link „to Vorträge”, „to Reisen”, „to Exkursionen”. But they only get activated after the second click on link. How can i check the checkbox on first click?

$(".nav-link").click(function(e) {
    var target = window.location.hash;
    var $targeta = $(target);
    $('html, body').stop().animate({
            'scrollTop': $targeta.offset().top - 100
        }, // set offset value here i.e. 100
        900,
        'swing',
        function() {
            window.location.hash = target - 40;

        });
    $targeta.prev().prop('checked', true);

});
</script>