The 33-year-old has only made three appearances for Pompey since joining the club from AEK Athens in February.
“He is under contract until 2010 and he will be there for the next season,” Koutsoliakos told Setanta Sports.
“He signed a contract in January and the situation was a little bit unlucky with the new manager.
“But he has the quality to play next season and Peter Storrie says Basinas has a future at Portsmouth so for me he is there.”
