Aрpellant, Theodore G. Chrun (“husband”), appeals a judgment of the Circuit Court awarding his former wife, respondent, Lorraine G. Chrun, (“wife”) a portion of his current monthly pension рayment from the Police Retirement System of the City of St. Louis. The Court of Appeals, Eastern District, reversed on the merits, but certified the case to this Court to determine the proper procedure for dividing marital property between former spouses not divided in the original dissolution of marriage action, citing a confliсt between the Eastern District’s
Ploch v. Ploch,
I.
The Chrun marriage wаs dissolved by a decree dated January 30, 1975; no appeal was taken. At the time of the dissolution of marriage, husband was an employee of the Police Department of the City of St. Louis and was contributing to a pension plan which was not fully vested. The original dissolution decree awarded the real estate owned by the parties to the wife as well as the entirety of the marriage’s personal property, furniture and household furnishings then in the marital home. The husband was also orderеd to pay maintenance and child support. The decree awarded no property to the husband. The. decree did not mention either the retirement or pension benefits of the husband or the fact that the husband received a 1965 Chevrolet valued at approximately $200.00. Husband listed his contribution to the pension plаn as a deduction from his salary on his statement of income and expenses filed as an exhibit. The transcript also reveals that he testified as to the amount of the bi-weekly deductions from his pay for pension contributions at the hearing; both the attorneys for husband and wife were present.
On May 2, 1986, more than eleven years after the decree became final, wife filed her motion to modify the decree or, in the alternative, to distribute undistributed assets. The motion speaks solely to the retirement or pension benefits, to which the wife now lays claim.
*754 The wife’s motion states that at the date of the hearing on the original dissolution, the husband’s pension plan was not considered marital property subject to division and that
[c]ircumstances have changed so substantially and continuing as to make the terms of the оriginal decree unreasonable to-wit:
A. Pursuant to case law, retirement and pension plans are now considered marital property subject to division by thе Court.
B. The aforesaid information was not available to the parties or to the Court and the status of the law has changed since the date the Decree of Dissolution was entered.
The motion further indicates that the pension and retirement plan is an undistributed asset of the marriage which now may be apportionеd by the court.
The husband moved to dismiss, claiming that the trial court lacked jurisdiction to modify the dissolution order by motion in the original case. The trial court, while aware оf the conflict between
Gehm
and
Ploch,
and indicating that it felt that the reasoning of
Gehm
was “more in keeping with
State ex rel. McClintock v. Black,
II.
A.
In
State ex rel. McClintock v. Black,
Subsequently, in
Ploch v. Ploch,
1. In a proceeding ... for disposition of property following dissolution of the marriage by a court which lacked persоnal jurisdiction over the absent spouse or lacked jurisdiction to dispose of the property, the court shall set apart to each spouse his property and shall divide the marital property in such proportions as the court deems just after considering all relevant factors....
[Emphasis added]. The
Ploch
court held that “the section 452.330 provision for these post-decree proceedings is to remedy inadvertence, oversight, and worse, and the only issue germane to maintaining such proceeding is whether property remains un-disposed of, not why it remains so.”
Ploch,
In
Gehm,
When a trial court has made a partial distribution of property and the judgment is final, the court hаs no jurisdic *755 tion under a motion filed in the original case to determine the nature of omitted property or provide for its distribution. The remedy in such a situation is to bring a sеparate suit in equity to determine the nature of the property in its proper allocation. State ex rel. McClintock v. Black....
B.
Faced squarely with a conflict between the districts of our Court of Appeals, we now hold that post-final-judgment efforts to divide marital property not previously divided in a dissolution action require an independent suit in equity. This result is consistent with Gehm and rejects the reasoning of Ploch.
Ploch
seems to assume that the only predicate for the application of Section 452.330 is the presence of undivided marital property. That statute does not authorize the use of a motion to distribute property omitted in the original decree. By its own terms, Section 452.330 is applicable only to those instances in which the court lacked personal jurisdiction over an absent spouse or lacked jurisdiction to dispose of the property and jurisdiction is subsequently аcquired.
Gehm,
When a judgment of the trial court distributing marital property becomes final, it may not be modified in the same case.
State ex rel. McClintock v. Black,
III.
We turn now to consider whether the motion filed by the wife is sufficient tо invoke the equitable powers of the court and thus may be considered an independent suit in equity. We look to substance, not form.
Equity will provide relief against a judgment obtained by extrinsic fraud, accident or mistake.
Robinson v. Clements,
Despite counsel for wife’s statements at oral argument to the contrary, the motion in this case makes no averments nor could it be liberally construed as pleading equitable grounds for review of the judgment. Instead, the language of the motion is consistent with that customarily employed in motions to modify decrees, citing changed circumstances but making no reference to mistake, accident or extrinsic fraud.
Even affording wife’s motion a liberal cоnstruction, we cannot say that she has invoked the equitable powers of the court to divide the previously undivided property. The trial court was thus without jurisdiction to рroceed, the judgment in the dissolution having become final. The judgment of the trial court is reversed.
Notes
. Rule 74.06 (effective January 1, 1988), modifies this result. Thе rule is not applicable in this case, however. It allows a post-final-judgment motion under enumerated circumstances, within one year. After the expiration of that time, an independent action in equity is required.
