Dion DiMucci, the frontman of 1960s pop group Dion and the Belmonts, has taken legal action against video game publisher ZeniMax Media (the parent company of “Fallout” creators Bethesda Softworks). He alleges that 2015 television commercials for “Fallout 4,” a post-apocalyptic role-playing action game, used his 1961 song “The Wanderer” without the singer’s explicit approval of the ad’s content. According to California state district court documents obtained by Polygon, both ZeniMax and DiMucci had a contract in place that stipulated DiMucci’s right of refusal in using “The Wanderer” if he disagreed with the final product, as well as an entitlement to bargaining with ZeniMax on a licensing fee if his demands were not met.

The lawsuit, which was filed this week, claims that neither DiMucci’s approval of the final commercial nor his right to bargain with ZeniMax were fulfilled. According to his lawyers, the singer’s biggest issue with the 2015 television ad was its “repugnant and morally indefensible” content:

Defendant’s Commercials were objectionable because they featured repeated homicides in a dark, dystopian landscape, where violence is glorified as sport. The killings and physical violence were not to protect innocent life, but instead were repugnant and morally indefensible images designed to appeal to young consumers.

The suit went on to detail the narrative behind “The Wanderer” and how it was wrongly represented by ZeniMax:

In The Wanderer, Dion gives life to the story of a sad young man who wanders from town to town, not having found himself or the capacity for an enduring relationship. The song describes isolation during coming of age. Without Plaintiff’s consent, Defendants dubbed The Wanderer into commercials in which the protagonist, a wanderer, roams from one location to the next, armed and hunting for victims to slaughter.

DiMucci is seeking damages “in excess of $1 million” for the association of his song with “immoral images.” ZeniMax has yet to comment on the suit. Watch the trailer in question below.