The annual charity auction for lunch with Berkshire Hathaway CEO Warren Buffett raised $3.3 million from an anonymous bidder, up from $2.6 million last year. This according to a recent article in The Wall Street Journal.

The event has raised more than $25 million for the San Francisco charity Glide (a cause favored by Buffett’s first wife Susie), which offers free meals, health care and other services to the city’s low-income and homeless people. The winner—one of six bidders– will be able to invite up to seven friends to the lunch at Smith & Wollensky steakhouse in New York.

The event’s winning bid has exceeded $1 million every year since 2008, the article reports.