Francois Le Berre, who has multiple sclerosis, was waiting patiently at a bus stop in Porte de Clichy in the French capital's suburbs. When the bus arrived the access ramp was put up but passengers on board did not move to allow him space, leaving him stranded outside.
Spotting the problem, the driver shouted 'Terminus', instructing everyone to get off, before allowing Mr Le Berre on board and driving off with him and his brother as the only passengers.
Mr Le Berre said: 'Yesterday while waiting for the bus in Paris, I laughed because no-one wanted to budge.
'When nobody moved the driver got up and said: "Terminus! Everybody off the bus!" 'After that the driver came to see me and said, "you and your helper, you can get on, and the others, you can wait for the next one!'
Speaking to France's Huffington Post, he said the bus driver had told him that 'everyone might need a wheelchair one day'.
After waiting for passengers to disperse he had come down to talk to Mr Le Berre and his brother and tell them they could get on the bus. The driver did not know him and had no disabled family members but had simply chosen to show 'a little civility', he said.