In this paper, I study gender-based voting behavior in the Belgian proportional electoral system. In particular, I investigate two possible causes for why voters experience the need to simplify their voting decision by using a gender-cue. First, in line with the findings of previous studies, I find that voters with lower levels of political sophistication who are less able to collect and process political information, are consequently more likely to use the sex of a candidate as a shortcut. However, the effect of political sophistication on gender-based voting behavior is limited. Second, based on the literature, I expect that the low information context of the second-order European elections would cause both high and low information voters to become more reliant on gendercues to simplify their voting decision and by extent would cause the effect of political sophistication on gender-based voting to diminish. Against theoretical expectations, I find that the effect of the electoral context is negligible.