Anna Soubry got the name of her new political party wrong - just minutes after it was officially announced.
The former Tory MP mistakenly referred to the new group as the Change.org - the name of a petition website.
The Independent Group of 11 MPs who had quit Labour and the Tories, today announced they were becoming an official political party with the name Change UK.
Ms Soubry was making a speech outlining why she will not be voting for the Prime Minister's withdrawal agreement today.
She said: "I've left the Conservative Party with two others, I think more will follow.
"I think we will see the break up of the two parties.
"I'm delighted that the group that I have joined with members formerly of the Labour Party has formed itself into a new political party that will change the face and direction of British politics.
"That is why we call ourselves Change.org and that is what I believe the British people are calling out for."
The petition website Change.org swiftly responded distancing themselves from the new party.
They insisted they were completely independent of party politics and are even seeking legal advice on how to respond to the use of their name.
Change.org taking legal advice after Independent Group 'use their brand name'
The group, which formed last month, was created after seven Labour MPs broke away from the party over concerns about Brexit , the antisemitism scandal and Jeremy Corbyn's leadership.
Three pro-EU Tories, Anna Soubry, Sarah Wollaston and Heidi Allen, followed suit and a further Labour MP, Joan Ryan, took their total to 11.
The 11 hoped other former colleagues would quit and swell their ranks.
But none have emerged.
Change.org's statement reads: " Change.org UK or @UKChange is a movement of 17 million people in the UK. We empower ordinary people to start petitions and campaign to create the change they want to see.
"Our petition starters, like Laura Coryton who ended the tampon tax and Richard Ratcliffe who is fighting for the freedom of his wife Nazanin, are disrupting the status quo of power in politics. Change.org UK or @UKChange as we are interchangeably known is totally independent of party politics, always has been and always will be.
"It is said that imitation is a form of flattery.
"But the movement that we have built in the UK to win campaigns for ordinary people is ours - all 17 million of us.
"We are seeking guidance on the proposed use of our brand name by those reported to be setting up a new political party.
