Connecticut family is praising their adopted mixed breed dog they rescued six years ago for saving the life of their newborn daughter on Sunday.

Jenna Brousseau, the dog’s owner, says she and her husband were startled Sunday night when their dog “Duke” jumped onto their bed and started shaking so much, it woke the couple up. Brousseau said it was odd behavior for the dog and since Duke seemed anxious and worried, they decided to check on their newborn daughter. Upon entering the nursery, the couple found their baby inside her crib, not breathing.

Brousseau says they called 911 who was able to revive their daughter, but they credit her true survival to their scrappy dog.