An OkCupid survey found that 72% of female respondents in the U.S. said they could not date someone who had strong political opinions that were “the exact opposite” of their own.

And it’s not just who you vote for, but whether you vote at all. OkCupid found that its female users were twice as likely as men to filter out matches who don’t vote.

Millennial and Gen X women are the most likely demographic to filter out non-voters.

“Voting is the new six pack,” Hobley said. “It is way less about what you look like, and much more what you believe in and what you care about.”