(Bloomberg) -- A broker at BNP Paribas SA who complained about being paid less than male colleagues won her employment suit after a London judge ruled that she suffered sexual discrimination.

Stacey Macken, a prime brokerage product manager who still works at the bank, said the judgment “proves that pay discrimination is occurring in the banking industry.” On one occasion, Macken came into work to find a witch’s hat on her desk.

“Leaving a witch’s hat on a female employees desk, in a predominantly male working environment, was an inherently sexist act,” Judge James Tayler said in a ruling published Tuesday. The episode “potentially reflects on the nature of working environment” at BNP “and the approach that was taken to women.”

A spokeswoman for BNP Paribas declined to comment.

Macken said during the trial she was paid less than male colleagues in similar roles and she was continually given lower bonuses throughout her tenure at the bank.

“I want to see BNP Paribas change and improve as a result of this,” Macken said.

To contact the reporter on this story: Jonathan Browning in London at jbrowning9@bloomberg.net

To contact the editor responsible for this story: Anthony Aarons at aaarons@bloomberg.net

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