Using custom fullcalendar.css with child theme

I came across an issue when trying to use a custom fullcalendar.css in a child theme.

The plugin tries to load the fullcalendar.css from the parent theme (in my case twentytwelve), as I have not modified the parent theme the file is not present.

I have implemented a fix which I think should work for all users

--- fsCalendar.php      2013-08-20 22:07:35.000000000 +0100
+++ fsCalendar.php.fix  2013-08-20 22:07:29.000000000 +0100
@@ -196,9 +196,9 @@
         function hookRegisterStyles() {
                if (!is_admin() && get_option('fse_load_fc_libs') == true) {
                        // Check if user has its own CSS file in the theme folder
-                       $custcss = get_template_directory().'/fullcalendar.css';
+                       $custcss = get_stylesheet_directory().'/fullcalendar.css';
                        if (file_exists($custcss))
-                       $css = get_bloginfo('template_url').'/fullcalendar.css';
+                       $css = get_stylesheet_directory_uri().'/fullcalendar.css';
                        else
                        $css = self::$plugin_css_url.'fullcalendar.css';
                        wp_enqueue_style('fullcalendar', $css);

http://ww.wp.xz.cn/plugins/wp-calendar/