Anti-racism campaigners at a public meeting last night unanimously agreed to hold a counter-demonstration against the East Anglian Patriots group when they return to Lincoln in the New Year.
The EAP were previously in the city in June to protest against the building of a mosque on Boultham Park Road.
Nick Parker, spokesperson for Lincoln Against Racism and Facism, said that doing nothing was not an option.
"If the East Anglian Patriots succeed in intimidating Muslims whose only offence is to practise their democratic right to worship freely, who will be the target next," he said.
"We need as many people as possible who oppose the threat of racism and the far-right to come out on to the streets of Lincoln, and join us in sending out a positive united message by standing up for the democratic rights of all sections of our community."
The "unity against racism" counter-demonstration called by Lincoln Against Racism and Fascism will take place on Saturday, January 18 in Lincoln city centre.
The time and venue will be finalised in due course.