Michael Eavis, organiser of the Glastonbury Festival, has handed over an extra £100,000 to Oxfam to help the charity's Sudan Appeal.
Michael Eavis has increased the festival's Oxfam donation
Oxfam normally receives a donation of £200,000 from the proceeds of the annual music event in Glastonbury.
This year's donation has been increased because of the Sudan crisis.
Mr Eavis said: "There seems to be differences in opinion about the scale of the disaster in Sudan, but one sure thing is these people need help."
It is estimated that fighting between rebel groups and government militia in western Sudan has caused more than one million people to flee their homes.
Many are sheltering in temporary camps, where food and water are in short supply and the risk of disease is high.
Last week, Oxfam's sixth aid flight arrived in the African nation delivering equipment needed to provide 1,000 toilets.
"Disease and diarrhoea are serious problems and cholera could break out at any time, " a spokesman said.
Over the last 10 years, Glastonbury Festival has contributed more than £1m to Oxfam's work.
This year, 150,000 people attended the three-day event at Worthy Farm, Pilton.