OPINION OF THE COURT
Consolidated Rail Corporation (“Conrail”) brought this diversity action against Portlight, Inc. (“Portlight”), seeking to rescind or reform a settlement agreement that the parties had previously entered into on the ground of mutual mistake. The District Court granted Portlight’s motion for judgment on the pleadings pursuant to Federal Rule of Civil Procedure 12(c). We will reverse.
I.
As this is an appeal from the District Court’s grant of a motion for judgment on the pleadings, we accept as true all of the allegations in the complaint and draw all reasonable inferences therefrom in favor of Conrail.
See Taj Mahal Travel, Inc. v. Delta Airlines Inc.,
On March 31, 1996, the Victor Company of Japan entered into an agreement with American President Lines, Ltd. (“APL”) in which APL agreed to transport 638 cartons of goods manufactured by the JVC Company from Yokohama, Japan to P.T. *95 Imports in New York City. The goods were transported by ocean liner from Japan to Los Angeles, and then by rail from Los Angeles to New York. A portion of the rail transportation was handled by Conrail, a Pennsylvania corporation.
When the shipment was eventually delivered to P.T. Imports, it was missing 68 cartons of the JVC merchandise. Consequently, P.T. Imports filed a claim with its insurance carrier, Reliance Insurance Company (“Reliance”), to recover the value of the missing goods. Upon receipt of a $140,521 payment from Reliance, P.T. Imports subrogated its rights and claims relating to the missing goods to Reliance, who then engaged defendant Portlight, a New Jersey corporation, to pursue recovery of the subrogated claims. Portlight submitted the claim to Conrail, and the parties eventually negotiated a settlement pursuant to which Conrail paid Portlight $120,302.53 in exchange for a release of all claims relating to the lost JVC merchandise.
Some months after the settlement agreement was executed, Conrail learned that APL and the Union Pacific Railroad Company (“Union Pacific”) had previously negotiated a discounted rail freight rate covering all rail transportation in exchange for a limitation of rail carrier liability of $500 per package. 1 Neither Conrail nor Portlight was aware of this limitation of liability agreement at the time the settlement was reached. Under the terms of this agreement, which Conrail contends applied to its handling of the JVC merchandise, Portlight’s maximum recovery would have been limited to $33,500. 2 Thus, according to Conrail, it overpaid Portlight by $86,802.33.
After Portlight rejected its demand to return the overpaid amount, Conrail initiated this action to rescind the settlement agreement, or alternatively to reform its terms, on the ground that the parties’ ignorance of the APL-Union Pacific limitation of liability agreement constituted a mutual mistake of fact. On August 21, 1998, after Portlight had filed its answer but before any discovery had taken place, the District Court sua sponte ordered Portlight to file a motion to dismiss. Less than two months later, the District Court granted judgment on the pleadings in favor of Portlight.
The District Court based its decision on two grounds. First, it held that Conrail’s lawsuit was precluded by the rule that “underestimating damages or making a settlement before damages are accurately ascertained is not considered a mutual mistake of fact.”
Consolidated Rail Corp. v. Portlight Inc.,
No. 98-2157, Slip. Op. at 3,
Conrail appeals the District Court’s order of dismissal. We have jurisdiction pursuant to 28 U.S.C. § 1291. Our review
*96
of the District Court’s dismissal under Federal Rule of Civil Procedure 12(c) is plenary.
See Taj Mahal Travel,
II.
In this diversity action, both parties have assumed that Conrail’s cause of action is governed by Pennsylvania law, an assumption that we have no reason to question. Under the law of that state, “ ‘[t]he enforceability of settlement agreements is determined according to principles
of
contract law.’ ”
McDonnell v. Ford Motor Co.,
Here, Portlight does not dispute that Conrail has adequately pled that both parties were unaware of the APL-Union Pacific limitation of liability agreement, that their ignorance of the agreement related to the basis of their bargain, and that it materially affected their performance. Instead, Portlight contends that it is entitled to judgment on the pleadings because, as found by the District Court: (i) the parties’ ignorance of the limitation of liability agreement does not constitute a mistake under mutual mistake doctrine, insofar as it involves an underestimation of damages; and (ii) to the extent that ignorance of the agreement could be considered a mistake, Conrail bore the risk of such a mistake because it failed to conduct a complete investigation of Portlight’s claim. We will address these arguments in turn.
As the District Court correctly observed, Pennsylvania courts have long held that underestimating damages or entering into a settlement before damages are adequately assessed is not a mutual mistake of fact.
See Emery v. Mackiewicz,
Leyda v. Norelli,
Emery
and
Leyda
thus stand for the proposition that a party who underestimates the future severity of her injuries will not be permitted to avoid the consequences of a settlement agreement based on mutual mistake. This is entirely consistent with the more general principle of mutual mistake doctrine that erroneous predictions of future events do not qualify as a mistake.
See M. Leff Radio Parts Inc. v. Mattel, Inc.,
Settlements are necessarily based upon facts which are then available to the parties and there is always a risk that injuries may prove to be more serious or less serious than then contemplated. If a release is to be lightly set aside for no other reason that the parties were mistaken as to the extent and nature of the injuries, the effect of the release and the advantage of the settlement would be lost.
Bollinger,
In this case, however, Conrail does not allege that it erroneously estimated the damages that it owed to Portlight based on an inaccurate forecast of future events, or even that it misjudged the actual damages suffered by Portlight. Instead, it contends that it was not required to pay more than $33,500 to Portlight due to a limitation of liability agreement, which, unbeknownst to the parties, was allegedly in effect at the time the settlement agreement was executed. Under these circumstances, where the purported mutual mistake relates not to a prediction of future events, but to a material fact that existed at the time the release was executed, the mutual mistake doctrine is applicable.
See Erie Ins. Exchange v. Meza,
35 D. & C.3d 514, 521,
We turn then to the District Court’s alternative holding that Conrail bore the risk of any mutual mistake because it failed to properly investigate Port-light’s claim for damages. The primary authority relied upon by the District Court for this conclusion is the Restatement, which provides that a party bears the risk of mistake when,
inter alia,
“[t]he risk is allocated to him by the court on the ground that it is reasonable in the circumstances to do so.” Restatement (Second) of Contracts, § 154(c);
see also Loyal Christian Benefit Assoc. v. Bender,
We think that this conclusion is plainly premature. At this early stage of the litigation, before any discovery has been conducted, we do not see how it is possible to arrive at an informed judgment concerning the appropriateness or thoroughness of Conrail’s investigation of Portlight’s claim. As the District Court acknowledged, in considering Portlight’s motion under Rule 12(c), our review is confined to the allegations in the pleadings and we must accept Conrail’s version of events as true.
See, e.g., Turbe v. Government of the Virgin Islands,
III.
For the foregoing reasons, the District Court erred in granting Portlight’s motion for judgment on the pleadings.
We will therefore reverse the October 16, 1998 judgment of the District Court and remand for additional proceedings consistent with this opinion.
Costs taxed against appellee.
Notes
. While the complaint refers to an "agreement” between APL and Union Pacific, the parties in their briefs indicate that the rail carrier limitation of liability was actually included in a tariff filed by Union Pacific. This difference is not material to our resolution of the instant appeal, but for the sake of clarity, we will in this opinion refer only to the APL-Union Pacific agreement.
. Although Conrail alleges in its complaint that its maximum liability under the APL-Union Pacific limitation of liability agreement is $33,500, that figure appears to be erroneous; 68 lost cartons of goods valued at $500 a unit would result in a liability of $34,000, not $33,500. This $500 disparity does not, however, affect our analysis of Conrail’s appeal.
. Portlight also contends that the District Court properly concluded that Conrail bore the risk of loss based on documentary evidence that Portlight attached to its motion for judgment on the pleadings. Portlight maintains that the District Court could have considered these materials even though they were matters outside of the pleadings pursuant to Fed.R.Civ.P. 12(c), which allows a court under certain circumstances to convert a motion for judgment on the pleadings into a motion for summary judgment. This argument must fail for the simple reason that the District Court made no reference in its decision to the documentary evidence that Portlight submitted. There is simply no basis for us to con-elude, as Portlight suggests, that the District Court ever considered these materials in dismissing Conrail's complaint,
