A real estate ad in a Massachusetts newspaper that limited responses to caucasians only has sparked anger and a discrimination lawsuit from a reader.

The ad in the New Bedford Standard-Times in New Bedford, Mass., “shocked a reader when she saw that the ad apparently endorsed racial discrimination,” according to a CBSnews.com story. “Buried in the ad for a piece of property in Fairhaven, Mass., was the passage, 'The said land shall not be sold, leased or rented to any person other than of the Caucasian race or to any entity of which any person other than that of said race shall be a member, stockholder, officer or director.'”

The ad apparently included language, by accident, from a 1946 land lease, the story said.

It prompted reader Mandi Costa to file a discrimination lawsuit. “Discrimination is alive and well and this is a primary example of something that says we're not equal yet. This is why I'm trying to bring light to everyone,” she said in the story. “This is old language. I completely understand that. But this is a new time.”

CBS adds that, “the Massachusetts Commission Against Discrimination is checking to see if any laws were broken when the ad was published. The Standard-Times called the ad's placement in the paper a 'gross oversight.'”