Colin Graves will serve an additional six months as England and Wales Cricket Board chairman after his plan to oversee the introduction of the controversial 'The Hundred' competition was approved.
Graves was due to leave next May but he will now stay in place until November 2020 after the debut season of the domestic tournament.
A special resolution, first floated last month and proposed by the ECB's non-executive directors, was approved at Tuesday's annual general meeting.
"I believe they have made a decision that is in the best interests of the game," Graves said.
"This will provide continuity during an important period, as we look to establish our new five-year plan, Inspiring Generations, a central component of which is the launch of The Hundred, next summer."
The Hundred will be the fourth format to the cricket landscape, with 100-balls per innings, and overs due to contain five or 10 deliveries rather than the standard six.
There has been considerable criticism of the new project's potential impact on the existing domestic schedule.
Eight city-based teams will take part in the competition with a player draft to pick the squads.