@ -53,7 +53,7 @@ class TaskConvert(CalibreTask):
def _convert_ebook_format(self):
error_message = None
local_session = db.CalibreDB()
local_session = db.CalibreDB().session
file_path = self.file_path
book_id = self.bookid
format_old_ext = u'.' + self.settings['old_book_format'].lower()