// we send file to kindle
$char_in = array('/', '.', ',', ':', '|'); # we sanitize filename to avoid conflicts with special characters (for instance, / goes for a directory)
- $mobiExportName = preg_replace('/\s+/', '-', str_replace($char_in, '-', $this->bookFileName . '.mobi'));
+ $mobiExportName = preg_replace('/\s+/', '-', str_replace($char_in, '-', $this->bookFileName)) . '.mobi';
$file = 'cache/' . $mobiExportName;
$mobi->save($file);