Conservative MP Robert Buckland said that the Tory party is interested in "leading" and showing people that when it comes to a referendum people "will have their say".
Speaking to Daybreak he said: "I personally believe that Britain's future is in the EU."
He added: "What I do see is with further engagements with countries like Germany, where we share many aspirations, that new coalitions, new alliances can be built and Britain's influence can only be enhanced."
Cameron has pledged to back a Conservative MP's EU referendum bill, as Cable labelled the move potentially 'damaging' for the country.
114 Conservative backbenchers have voted in favour of a eurosceptic motion to amend the Queen's Speech in defiance of the Prime Minister.
David Cameron has denied he has buckled under pressure from his backbench MPs over the EU debate.