A South Korean court has refused to review a complaint over the 1965 treaty between Japan and South Korea that Tokyo uses to deny compensation for South Korean victims of World War II-era slavery.

Seoul’s Constitutional Court said Wednesday that it won’t review the constitutionality of disputed parts of the treaty because the accord was never meant to serve as a standard for providing individual compensation.

The court’s decision came in response to a complaint filed by a woman who said the treaty blocks her right to seek more compensation because of her late father’s wartime slavery. Japan colonized Korea from 1910 to 1945.

The treaty was accompanied by large amounts of economic aid and loans from Tokyo to Seoul and declared compensation between the countries “completely and finally” settled.