This paper studies the effect of a large and plausibly exogenous tradeinduced shock on gender inequality in the labor market. In the 1990 s, Brazilian government decided to reduce import tariffs, inducing a large, once and for all trade liberalization, with heterogeneous effects across local economies. Using Brazilian Decennial Censuses, I estimate medium (1991-2000) and long (1991-2010) term effects of this shock to labor market outcomes separately by gender and its consequences for gender inequality. I provide a conceptual model of occupational segregation to rationalize the results. Finally, I also examine potential implications of this shock to the marriage market and individuals human capital accumulation. Results point that, in the medium run, in harder hit regions there was an increase in the gender wage gap and women proportionally faced higher increase in nonemployment compared to men. In the long run, the losses in employment in the tradable sector remained, but in the as a whole economy they disappeared, while the gender wage gap in non-tradables decreased. Besides that, both in the medium and long run, there was an increase in human capital accumulation, at the same that the share of women that are married and have children decreased. In light of the model, these findings emphasize the importance of paying attention not only to the wage inequality, but also to the unequal distribution of genders between occupations.