(fixes #2425) fixed invalid input type
(fixes #2425) fixed invalid input type

openpne/OpenPNE3,openpne/OpenPNE3,nise-nabe/ppcon-sns,openpne/OpenPNE3,tejima/OP3PKG,nise-nabe/ppcon-sns,openpne/OpenPNE3,tejima/OP3PKG