How to stop a dog from chewing on cords?

As i’m sitting here surfing Fluther, I look down and what do I see? My dog, chewing on the cord that goes to my monitor.. (AHHHHHHHHHHHHHHHHHHH) (sorry it’s 4:15am and I want to scream, lol) but seriously, he has this habbit of chewing on cords. He has chew toys and stuff but still he seems to like electrical cords and other wires (such as a pair of Bose headphones)..... Does anyone have any good remedies to stop him? He’s a little over a year old. I’m not sure of his type of dog, sorry, hes mixed.