William Shatner has decided he wants to live life as a single man.

E! News learned in December that the 88-year-old actor filed for divorce from his wife, Elizabeth Shatner, after nearly 18 years of marriage. According to his divorce docs, which were obtained by E! News, the Star Trek actor cited "irreconcilable differences." On Tuesday, a source confirmed to E! News the judgement has been submitted to the court but not filed yet. The pair has come to an agreement and submitted the judgement, but the court still needs to sign off on it.

The longtime pair tied the knot in Feb. 13 2001—it marked William's fourth marriage and Elizabeth's second.

The duo's divorce should be "quick and not complicated," according to a source, who confirms to E! News that they signed a prenup. Additionally, TMZ reports because there's a prenup in place, neither William or Elizabeth will receive spousal support from each other.

The divorce docs also state that both parties "waive spousal support."

And while the Star Trek star's divorce is making headlines right now, it looks like things between the pair were rocky earlier in the year.