NYPD Commissioner Bill Bratton will march in the controversial St. Patrick's Day Parade next month, in a break with his boss, Mayor Bill de Blasio.

The mayor, along with most other citywide officer holders, are boycotting on grounds that organizers exclude openly gay marchers.

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Bratton did not explain his decision, announced Thursday in response to a reporter's question.

Bratton's predecessor, Ray Kelly, used to march in the parade.

The City Council also won't have an official presence, though individual council members and city workers may participate if they choose.

The parade is March 17.