Parliament was due to break up in a fortnight, but Commons Leader Andrea Leadsom announced there were "no plans" to implement the technical measures to do so.
She said she was "very sorry for the inconvenience" and that staff working in parliament will not be left "out of pocket".
"I do think our constituents will expect that the house is able to continue to make progress at this important time," Ms Leadsom added.
Valerie Vaz, Labour's shadow Commons leader, accused the government of "staggering from one week to the next".
She pointed out that six important pieces of law need to pass in parliament before Brexit day - on immigration, trade, financial services, agriculture, fisheries and healthcare.
Ms Leadsom said she was "confident" all the relevant legislation would be completed on time.