¶1delivered the opinion of the court.
¶2The plaintiffs brought suit on a note against the defendants, to which no answer or defense was put in ; and at the March term, 1870, a judgment by default was rendered against the defendants on this note for $405.55, when in truth the real amount then due, including the interest, was $507.80. The attorney who was attending to the case made a mistake in calculating the interest on. the note, and when the case was called for judgment, the judge, without calculating the amount due, asked the attorney, who, being under a mistake himself, replied $405.55, and the judgment was rendered by mistake for that amount, when it should have been for $507.80. Most of the judgment has been paid. The mistake, it seems, was not discovered during the term, and the plaintiff brings this suit in the nature of a suit in equity to correct the alleged mistake by compelling the defendants to pay the amount that was left out of the judgment by mistake. The defendants demurred to the petition upon the ground that the court had no jurisdiction to grant any relief where there had been a mistake of that kind.
¶3It is clearly established in this State that where a matter has been once litigated or adjudicated it cannot be reopened in another suit at law or in equity. Nor can error or mistake in a judgment be corrected in a court of law after the lapse of the term at which the judgment was rendered. (See Ashley v. Glas*19gow, 7 Mo. 320; Caldwell v. Lockridge, 9 Mo. 368; Hill v. City of St. Louis, 20 Mo. 584; Smith v. Best, 42 Mo. 185.)
¶4But conceding these principles to be correct, is there no remedy for a mistake of this kind, not discovered till after the lapse of the term when the judgment by default was made final ? It seems to have been an innocent mistake or oversight both in the counsel and the court. There is no dispute that the defendants justly owe the amount. If by sheer mistake of the court in calculating the interest, or in addition or otherwise, the court had rendered a judgment by default for $>500 more than was due on the note, would the defendants be without redress in a court of equity ? It seems to me that they would have a clear right in such case to come into a court of equity to be relieved against the mistake. Is not the plaintiff entitled to the same remedy? Courts of equity do relieve against mistakes in judgments, settlements, etc., and I think this is a case where such relief ought to be given. (See Boon v. Miller, 16 Mo. 457; 1 Sto. Eq., § 166.)
¶5Let the judgment be reversed and the cause remanded.