Open flash path bug

There is a bug in open flash chart

in charts_graphs_open_flash.class.inc file

code is

    $openflash_swf_uri = $base_url . base_path() . $mod_path . '/open-flash-chart.swf';

should be

 $openflash_swf_uri = $base_url . '/' . $mod_path . '/open-flash-chart.swf';

as otherwise sef path is wrong and not working.