We investigate the argument that men who are raised by working mothers develop a preference that is favorable toward working women, and, consequently, are more likely to have working wives. We test this hypothesis using the Japanese General Social Surveys 2000-2003. We directly examine the responses to the opinion survey's questions regarding appropriate gender roles. The estimation results indicate that men raised by full-time working mothers are less likely to support traditional gender roles. Those men are also less likely to believe in the negative impact of a mother's working on her children's development. JEL Classification: J12, J16, J22