LONDON (AP) — The British government is bracing for more bruising debate on its key Brexit bill, after being forced to give ground to pro-EU lawmakers to avoid defeat.

The House of Commons is holding a second day of votes Wednesday on the European Union Withdrawal Bill, intended to disentangle Britain from the bloc. The government is trying to reverse changes inserted by the House of Lords that would soften the terms of Brexit and give Parliament more say in the process.

The government averted defeat Tuesday by promising that Parliament would get more say over the U.K.-EU divorce deal. But pro-EU lawmakers warn they could rebel again if the promise is not met.

The Commons will vote Wednesday on the divisive issue of Britain's future customs relationship with the EU.