Apparently, zombies aren’t very good at fact-checking.

AMC made a serious goof in a full-page “Walking Dead” ad that ran in Thursday’s edition of the New York Times. The ad was meant to showcase the popular zombie series’ continuing ratings dominance over major network series such as “Modern Family” and “The Voice” in the all-important 18-49 demographic.

In the process, AMC execs managed to mislabel “Modern Family” as a Fox series, and “The Voice” as an ABC series.

On the bright side, the “Walking Dead” advertisement mistake didn’t extend to fellow contenders such as “American Idol” and “The Big Bang Theory,” both of which were attributed to their proper networks.

AMC poked fun at its inadvertent mistake.  "It appears our fact-checking department was overrun by zombies," AMC said in a statement to TheWrap. "We have the utmost respect for these shows and networks."

“Walking Dead” showrunners have a good reason to brag about the series’ ratings. According to the New York Times ad, the series pulled in a 5.6 rating for its third season finale, more than a full point better than “Modern Family” (4.4) and “The Voice” (4.4).