Prime Minister Shinzo Abe will fail to meet his goal of having women in 30 percent of management positions in the civil service by 2020 unless candidates are lured from private industry, the gender equality minister said in a recent interview.

More than a year since Abe took office promising to boost female employment, the government has only managed to fill 3 percent of supervisory positions in the civil service with women.

"Unless they appoint people from outside, they won't make the target," Masako Mori said in an interview in Tokyo last week.