The government is allocating £250,000 of Department of Culture, Media and Sport funding to help restore the World War Two code-breaking centre at Bletchley Park.
The announcement, made by culture secretary Ben Bradshaw, followed a long campaign for better funding of the centre.
Bletchley Park housed the world's first programmable electronic computer, and was responsible for much of the early development of modern cryptography and computer engineering.
"The work carried out at Bletchley Park had a huge impact on the course of the war, and the museum does a brilliant job in bringing this alive for people of all ages," said Bradshaw.
"It urgently needs funds to keep it in good condition. I am delighted to announce this grant, which will help renovate the buildings and ensure that future visitors enjoy a really high quality experience when they come here."
After the war, the site was used by the government and fell into disrepair until it was taken over by the Bletchley Park Trust, which has since fought hard to preserve the building and its historical artefacts.
"The new funding is making a huge difference," Simon Greenish, chief executive of the Bletchley Park Trust, told V3.co.uk.
"The award is allowing to deal with the worst of the problems, and means we can take the rest of the restoration a bit more slowly and carefully because there are less emergencies. Visitor numbers keep going up, but we do run on empty. It's a tight ship."
Cotton seedling freezes to death as Chang'e-4 shuts down for the Moon's 14-day lunar night
Fortnite easily out-earns PUBG, Assassin's Creed Odyssey and Red Dead Redemption 2 in 2018
Meteor showers as a service will be visible for about 100 kilometres in all directions
Saturn's rings only formed in the past 100 million years, suggests analysis of Cassini space probe data
New findings contradict conventional belief that Saturn's rings were formed along with the planet about 4.5 billion years ago