Bridgeport fire officials said there was an electrical fire on the first floor of Isla Sports Bar on Friday night.
The assistant fire chief said there was no extension to the fire, and only a small section was damaged.
Fire officials said no one was inside the restaurant at the time.
The residents living upstairs from the establishment were allowed back into the building.
The assistant chief said no one was hurt.
Officials say the Bridgeport Fire Department is investigating the cause of the fire.