The 34-year-old had said after the World Cup that he may stop playing for Belgium or seek a rest this season, skipping the Nations League where Belgium are grouped with France, Italy, Turkey and play six matches over the next three months.
He told reporters after Real Madrid's 2-1 win over Inter Milan in the Champions League on Tuesday that new Belgium coach Mark van Bommel understands his decision.
"I will remain available for the European Championship qualifying campaign with the national team, and I understand that I will have to fight for my place just like the other goalkeepers," he told Belgian daily Het Laatste Nieuws.
“Physically, I don't know if I can maintain the same schedule for another four years."
The first qualifiers for the 2028 European Championship are scheduled for March next year.