Photo by Rachel Sadon.

If you picked up your copy of Express this morning, you might have noticed something odd on the cover.

An image of the male symbol accompanied the cover story about the Women’s March on Washington for the free daily paper from the Washington Post.

Express sent out these tweets copping to the error (though not before at least one rough draft got published and deleted).

This is how the cover should have looked. We apologize for the mistake. pic.twitter.com/MKKOkHPV8T

— Express (@WaPoExpress) January 5, 2017

They also deleted the original tweet showing off their cover, which you can see here.

We’ve reached out to Express and will update if we hear back.

For those looking for a primer on the standard sex symbols, the Mars symbol (with the blue arrow) is associated with men and the Venus symbol (fuchsia arrow) with women.

Image via Shutterstock.

An easy way to keep it straight is to Google which symbol Austin Powers wore as a necklace. That would be the male, or Mars, symbol.

And to remember the Venus symbol?

All @WaPoExpress had to do to get today’s cover right was to have seen Race for Your Life, Charlie Brown. pic.twitter.com/Qzw2mvRqCy

— Mike Maguire (@MikeSpeaks) January 5, 2017

Good on Express for copping to their mistake. With tight deadlines these things do inevitably happen, but I still like this reasoning better:

Fourth-wave feminism is when the women start co-opting male symbols as our own, and apparently it starts right now https://t.co/6PyJrzvfoo

— Natasha Geiling (@ngeiling) January 5, 2017