A security guard at the store had told a Muslim woman student to remove her hijab last week.
A crowd of people, mainly Muslim women, joined the protest organized by the Islington Stand Up To Racism group.
"This is what we face every day. They say we're terrorizing the country but they're the ones terrorizing us,” Nafisa, a protester said.
"I'm a care worker, we do the hard work, but they don't want to see us in the streets with our hijabs.
"Now they don't want to allow us to buy food.”
After the incident a friend of the student posted footage of the security guard confronting her to Twitter. McDonald’s has since apologized.
Rakhia Ismail is a Labour councilor for the local Holloway area. "You hear stories in the Muslim community about things like this but I was shocked when I saw the video,” she said.
"If there wasn't a video clip then people would just think that it's another Muslim complaining.”
She added, "If they don't want our hijabs then we shouldn't give them our money.”
Activists at the protest demanded that McDonald's guarantee that it will instruct managers to make sure an incident like this cannot happen again.
It is the result of the Islamophobia that's pushed by the likes of Donald Trump, Theresa May and the racist right, Ayan said. "This is coming from the top, not the general population. They are normalizing hate against Muslims.”