To be effective, central bankers must project expertise and an anti-inflation commitment. However, those attributes are usually male-coded, which may undermine female central bankers. We assess gender bias using a survey experiment fielded in Japan in September 2022, when, for the first time in decades, the Bank of Japan appeared to struggle with inflation. We exposed individuals to simplified Bank of Japan communication and randomly assigned attribution to male (Mr. Adachi) or female (Ms. Nakagawa) Policy Board members. Respondents trusted the Bank of Japan less and were more sceptical of its capacity to handle inflation when Ms. Nakagawa represented it.