NBC's Saturday Night Live was criticized earlier this year for not having any black female cast members. The show recently addressed the issue by hiring Sasheer Zamata but once again finds itself taking heat, this time because of a joke that characterized a black woman as a man.

This past Saturday's Weekend Update segment featured a joke based on a podcast appearance by Nebraska postdoctoral research fellow Raychelle Burks:

A chemistry grad student in Nebraska is creating a new perfume he calls Eau de Death, which mimics the smell of decaying flesh so people can avoid being eaten by zombies. Meanwhile, his professor is creating a new grade he calls “F minus.”

Burks took issue with the joke's use of "his", as she is, in fact, a female. Noting that the gender change was unnecessary, Burks chastised the show for its sexism:

You made me into a male graduate student. I am a female postdoctoral research fellow and a member of the teaching faculty at my institution. Truth be told, I’m a bit of a magical unicorn, so it’s odd you did not notice that. “Magical unicorn,” you say? I am a black female chemistry Ph.D. But as I said on Twitter, SNL doesn’t have the best track record with black women, so … oh snap!

But it turns out the show's diversity disparagement didn't end there, as Burks's professor, made to be male in the joke, is also female.