Problema alterar dados [RESOLVIDO]

Erro ao alterar consulta java.sql.SQLException: No value specified for parameter 6

public void alteraContato() throws SQLException {

        if(jTTabela.getSelectedRow() != -1) {

                Agenda a = new Agenda();
                AgendaDao dao = new AgendaDao();

                a.setCodigo(Long.valueOf(ctCodigo.getText()));
                a.setNome(ctNome.getText());
                a.setDia(ctDia.getText());
                a.setHora((String) cbHorario.getSelectedItem());
                a.setTipoconsulta((String)cbTipoConsulta.getSelectedItem());
                a.setStatus ((String) cbStatus.getSelectedItem());
                dao.altera(a);

               JOptionPane.showMessageDialog(null, "Consulta alterada com sucesso.");
          }
    }

public void altera(Agenda a) throws SQLException {

String sql = "UPDATE agenda set nome = ?, dia = ?, hora = ?, tipoconsulta =?, status = ? WHERE codigo = ?";

PreparedStatement stmt = conexao.prepareStatement(sql);

        stmt.setString(1, a.getNome());
        stmt.setString(2, a.getDia());
        stmt.setString(3, a.getHora());
        stmt.setString(4, a.getTipoconsulta());
        stmt.setString(5, a.getStatus());

        stmt.execute();
        stmt.close();
  }