Beverly Johnson is calling on Anna Wintour and Condé Nast to adopt a “Beverly Johnson Rule” that would force the publisher to interview “a diverse set of candidates” when hiring.

Johnson, who in 1974 was Vogue’s first black cover model, outlined in an op-ed for the Washington Post a mandate that “would require at least two black professionals to be meaningfully interviewed for influential positions.”

The fashion icon added, “This rule would be especially relevant to boards of directors, C-suite executives, top editorial positions and other influential roles. I also invite chief executives of companies in the fashion, beauty and media industries to adopt this rule.”