Facebook has agreed to change its paid advertising platform as part of a settlement to prevent discriminatory and “harmful” practices, the company and U.S. civil rights groups said on Tuesday.

Under the agreement, Facebook will create a new advertising portal for ads linked to housing, employment and credit ads that will limit targeting options for those ads across all of its services, including Instagram and Messenger, the rights groups said in a joint statement.

Advertisers on the portal, which will be separate from the system used to advertise other sets of services, will not be able to target ads by age, gender, cultural affinity or zip code, the statement said.

They will also be required to use a minimum geographic radius for location-based targeting to prevent the exclusion of certain communities.

In addition, the company pledged to build a tool allowing users to search all current housing ads listed in the United States, regardless of whether the ads were directed at them.

“There is a long history of discrimination in the areas of housing, employment and credit, and this harmful behavior should not happen through Facebook ads,” Facebook’s Chief Operating Officer Sheryl Sandberg said in a statement.

Facebook has been on the defensive over its advertising practices, while also fending off privacy scandals and disclosures that Russia used its platform to meddle in the 2016 U.S. presidential election.

Complaints over ads-based discrimination have dogged the company since 2016, when news organization ProPublica reported that advertisers could target ads on Facebook based on people’s self-reported jobs.

Facebook has faced sustained legal pressure over the issue from the National Fair Housing Alliance, the American Civil Liberties Union and the Communications Workers of America, among other groups and individuals.