A black Labrador saved a Potomac family early Monday morning when the dog’s barking warned them of a fire that would go on to consume their home and cause more than $1 million in damage.

Lawyer Steven Kelber, his wife and a child visiting from New York were asleep around 1:30 a.m. when Jet, a longtime family pet, alerted them to smoke coming from the garage of their home on the 11000 block of Lake Potomac Drive, according to Montgomery County fire officials.