A Houston judge barred Facebook from implementing a new feature for users to clear their web-browsing histories from the site’s data troves, finding it would destroy evidence in a lawsuit by a young woman who claims a sex trafficker targeted her on the social media platform.

The jurist, 334th District Judge Tanya Garrison, late Thursday granted the Jane Doe plaintiff a temporary restraining order that restrains and enjoins Facebook from deleting website and application tracking data and implementing the new “Off-Facebook Activity” application in the United States. The app enables users to delete their own tracking data from Facebook.