Zelda Williams, the daughter of late actor Robin Williams, has made a return to social media after pledging to leave Twitter following her father’s death on August 11th.

The 25-year-old removed Twitter from her devices just one day after Robin was found dead in his California home. She had been plagued by online trolls sending hateful comments about her father, and even images that were Photoshopped to look like his corpse.

Before deleting the app, she posted this message to Twitter:

Yesterday Zelda made a quiet return, simply writing “Thanks” along with a link to her Tumblr page, showing an anti-bullying quote from actor Harvey Fierstein:

After Zelda was mistreated on Twitter, the social media company announced they were overhauling their policies to prevent similar situations in the future. “We have suspended a number of accounts related to this issue for violating our rules and we are in the process of evaluating how we can further improve our policies to better handle tragic situations like this one,” said Del Harvey, Twitter’s vice-president of trust and safety.