The Conservative Party has gained an extra seat on Aylesbury Vale District Council after Liberal Democrat councillor Paul Hughes defected.
Mr Hughes, who has served the Coldharbour ward since 2003, has joined the Conservatives with immediate effect.
The party, who recently lost outspoken councillor Phil Yerby to UKIP, now have 36 seats while the Lib Dems have 16.
Neil Blake, Conservative leader at AVDC said: “I’m looking forward to working with Paul.
“He’s dedicated to working for his residents in the Coldharbour ward and he’ll be a great addition to our team, using his enthusiasm and commitment to help achieve the Conservative administration’s goal of making Aylesbury Vale the best possible place to live, work and play and for business to grow.”
Steven Lambert, leader of the council’s Lib Dems said: “I’m sad for Paul that he has taken the decision to join a party he has campaigned against all his political career.
“Even up to a week ago he was attacking them in the chamber.
“For me, it’s a question of integrity, how are the electorate to believe him again.
“We are sorry to see Paul go, but it will have no effect on the district team.”
The Bucks Herald tried to contact Mr Hughes however he was not available for comment.