QDataStream >> vs ambiguous overload

QDataStream & operator>>(QDataStream & dataStream, FtpAccount & ftpAccount)
{
    QString hostname;
    dataStream >> hostname;
    ftpAccount.setHostname(hostname);

    quint16 port;
    dataStream >> (quint16)port;
    ftpAccount.setPort(port);

    QString username;
    dataStream >> username;
    ftpAccount.setUsername(username);

    QString password;
    dataStream >> password;
    ftpAccount.setPassword(password);

    return dataStream;
}

FtpAccount.cpp:63: ошибка: no match for 'operator>>' (operand types are 'QDataStream' and 'quint16 {aka short unsigned int}')
     dataStream >> (quint16)port;
                ^

QDataStream & operator>>(QDataStream & dataStream, FtpAccount & ftpAccount)
{
    QString hostname;
    dataStream >> hostname;
    ftpAccount.setHostname(hostname);

    quint16 port;
    dataStream >> (quint16&)port;
    ftpAccount.setPort(port);

    QString username;
    dataStream >> username;
    ftpAccount.setUsername(username);

    QString password;
    dataStream >> password;
    ftpAccount.setPassword(password);

    return dataStream;
}