A Dunkin’ Donuts worker was slashed in the face by a man whom she tried to boot from the shop, police sources said.

The victim, Daxa Patel, 35, was working at the shop on East Kingsbridge Road in the Bronx around 5:45 a.m. Wednesday when she asked the suspect to leave.

After a brief argument, the fiend, identified as Ronald Thompson, 31, agreed to leave, sources said.

But he returned a short time later, approached a walk-up window and slashed the woman’s face with a razor blade.

Thompson ran away, leaving the victim with a deep gash on the right side of her face. She was rushed to North Central Bronx Hospital for treatment.

Thompson was arrested and charged with assault and possession of a weapon.

He has a long rap sheet that goes back to at least 2004 for crimes such as assault, selling drugs, fare beating and criminal mischief.