I've got a really simple enqueue in my functions.php file. The weird thing is that it only actually inserts the script if I'm logged in. I've tried wiping out everything else in the functions.php but it doesn't change anything. I'm not even sure what to try next. Any ideas?

function enqueue_my_script() {
    wp_enqueue_script( 'my-script', get_stylesheet_directory_uri() . '/my-script.js');
}
add_action( 'wp_enqueue_scripts', 'enqueue_my_script' );