The Republican National Committee on Sunday clarified a tweet it sent out claiming civil rights icon Rosa Parks ended racism after the tribute was mocked on the social media website.

The tweet, accompanied by a picture of Parks, read “Today we remember Rosa Parks’ bold stand and her role in ending racism.”

Today we remember Rosa Parks’ bold stand and her role in ending racism. pic.twitter.com/uxIj1QmtkU — RNC (@GOP) December 1, 2013

Twitter users who disagreed with that statement took up the hashtag #RacismEndedWhen. The RNC sent out another tweet that clarified the previous tweet’s language about three hours later:

Previous tweet should have read “Today we remember Rosa Parks’ bold stand and her role in fighting to end racism.” — RNC (@GOP) December 1, 2013

This post has been updated.