South Korea’s high court has upheld a ruling ordering Citibank Korea Inc., to pay menstruation leave allowances to former and current women employees.

The women filed suit against the bank after it refused to pay the allowances for two years, the Korea Times reports.

“It was mandatory for the bank to pay allowances for period leave based on regular pay to the defendants in accordance with the regulations of the Labor Standard Law,” the lower court ruled.

It ordered Citibank Korea to pay $1,559 to each of the 1,298 former and current employees named in the suit.