Target has stopped selling a children’s educational product celebrating Civil Rights history after a TikTok video, which has so far been viewed over 960,000 times, pointed out that some historical leaders were mislabeled.

In the TikTok posted earlier this week, U.S. history high school teacher Tierra Espy, who shares content under the handle @issatete, said she purchased the magnetic learning activity to give to her kids for Black History Month in the U.S. in February, but immediately noticed discrepancies.

She pointed out the names of three Civil Rights icons—Carter G. Woodson, W.E.B. DuBois and Booker T. Washington—did not match cartoon depictions of their photos that she found online.