AMC is grateful for its “Dead.”

The cable network has re newed freshman series “The Walking Dead” for a second season of 13 episodes — after only two airings.

That’s big news for a show that only received a six-episode order for its first season — but which has gotten off to a strong start.

The first “Walking Dead” episode averaged 5.3 million viewers, while episode two pulled in 4.7 million viewers this past Sunday night at 10.

It’s also averaged more adult 18-49 viewers (over 3 million) than any other first-season cable series, excluding sports.

“The Walking Dead,” based on Robert Kirkman’s comic book series, follows several characters in the aftermath of a “zombie apocalypse.”

There’s no word, yet, when the second season will premiere.