
583 N.W.2d 552 (1998)
230 Mich. App. 346
Kenneth K. RIETH, Arlene Morris, Riviera Holding Co., and Riviera Die & Tool, Inc., Plaintiffs-Appellees,
v.
Durametallic Corp. and Fred H. Borsini, Defendants-Appellees, and
Herbert KEELER, Defendant-Appellant.
Docket No. 199352.
Court of Appeals of Michigan.
Submitted March 12, 1998, at Grand Rapids.
Decided June 16, 1998, at 9:15 a.m.
Released for Publication September 10, 1998.
*553 Dickinson, Wright, Moon, Van Dusen & Freeman by Rock A. Wood and Lawrence G. Campbell, Grand Rapids, for Plaintiffs-Appellees.
Plaszczak & Bauhof, P.C. by James F. Bauhof, Kalamazoo, for Defendant-Appellant.
Before MARKEY, P.J., and RICHARD ALLEN GRIFFIN and WHITBECK, JJ.
PER CURIAM.
Defendant Herbert Keeler appeals by leave from an order of the trial court denying his motion to allow his acceptance of the mediation evaluation as timely. We reverse and remand for further proceedings.
Plaintiffs filed suit alleging that defendant and others had fraudulently induced plaintiffs to enter into a transaction that included the merger of Old Leap Technologies, Inc., and Riviera Plastic Products Company. After mediation, the mediation panel awarded damages to plaintiffs and against defendants. Plaintiffs initially accepted the mediation evaluation with respect to defendant. While defendant apparently decided to accept the mediation evaluation, the acceptance was not sent to the mediation clerk, as envisioned under MCR 2.403(L)(1).[1] Plaintiffs' counsel informed defendant's counsel that plaintiffs would not stipulate an amendment of the notice of acceptance/rejection to reflect an acceptance of the award. Defendant then filed his motion with the trial court to allow defendant's acceptance of the mediation evaluation as timely. Defendant argued that the acceptance of the mediation had inadvertently not been mailed to the mediation clerk. The trial court denied defendant's motion.
On appeal, defendant seeks reversal on the grounds that the trial court failed to exercise its discretion with respect to defendant's motion to allow defendant's acceptance of the mediation evaluation as timely. We review a claim alleging a failure to exercise discretion under the abuse of discretion standard. People v. Stafford, 434 Mich. 125, 134, n. 4, 450 N.W.2d 559 (1990). In that case, the Michigan Supreme Court held that "failure to exercise discretion when called on to do so constitutes an abdication and hence an abuse of discretion." Id.
The trial court, in denying defendant's motion, relied upon Busch v. Hoffmeyer, 429 Mich. 874, 414 N.W.2d 890 (1987). The trial court reasoned as follows:
It is true that under the rules, the Court can extend most deadlines. There are a few it can't extend, but it can extend most. The effect of that and the manner of which it is usually done is, frankly, forgiving the missing of a deadline. Few people ask us to extend them in advance. They always ask us after the fact to forgive the fact that one was missed. Same thing I think, just slightly different form.

*554 However, when it comes to forgiving the missing of a deadline, the cases involving defaults in general, and it appears to me those involving acceptance or rejection of mediation in particular, do seem to uniformly say that the mistake of the lawyer is not sufficient grounds. That's what I clearly read Busch to say.
In terms of prejudice to the objecting party here, despite what I said to begin this argument, there are, indeed, a variety of stratagems which are being pursued when it comes to accepting and rejecting mediation. Sometimes it is done in the hopes that the other side will reject, so that by accepting, attorney's fees can be avoided, and negotiating postures change. So, the truth of the matter is, is that there is substantial potential here for something being done adversely, giving what these parties had planned on doing.
Accordingly, in light of the case law most recently, the Supreme Court, which is the ultimate arbiter of all of these, the motion is denied.
In its brief summary discussion in Busch, the Michigan Supreme Court held that the trial court had not abused its discretion in denying the plaintiffs' motion for relief from the mediation order where the rejection letter had not been timely mailed.[2]Id. at 874-875, 414 N.W.2d 890; see Busch v. Hoffmeyer, 158 Mich.App. 786, 789, 405 N.W.2d 220, rev'd 429 Mich. 874, 414 N.W.2d 890 (1987). Here, although its language is more than a little opaque, the trial court apparently read Busch as containing a mandatory pronouncement that if there is an error or inadvertent mistake of counsel with regard to meeting a mediation deadline, then under no circumstances can relief be granted. We read Busch, however, as merely stating that, under the facts of that case, the trial court had not abused its discretion. The important distinction, we believe, is that Busch should not be read as laying down a mandatory rule of law; rather, Busch, properly understood, stands for the proposition that trial courts have discretion regarding whether to provide relief from inadvertently missing a mediation deadline. After carefully reviewing the record, we conclude that the lower court here operated under the assumption that it did not have such discretion. The trial court appears to have believed that under Busch it simply could not extend the deadline for filing a mediation acceptance.
This Court has previously held that a trial court has discretion to allow a party to amend the deemed rejection of a mediation evaluation based on the party's failure to respond within the required twenty-eight-day period to reflect the party's acceptance of the mediation evaluation. State Farm Mut. Automobile Ins. Co. v. Galen, 199 Mich.App. 274, 278-279, 500 N.W.2d 769 (1993). However, in such an event, the trial court should enter judgment on the mediation evaluation only "if the opposing party reaffirms its continued acceptance of the award." Id. at 278-279, 500 N.W.2d 769. Thus, if on remand the trial court eventually decides to allow defendant to amend his deemed rejection of the mediation evaluation to an acceptance of that evaluation, plaintiffs must thereafter be provided an opportunity to either reiterate their acceptance of the mediation evaluation or to reject the mediation evaluation.
Moreover, our conclusion is strengthened by the provisions of MCR 1.105. Although not cited by the parties, this rule provides:
These rules are to be construed to secure the just, speedy, and economical determination of every action and to avoid the consequences of error that does not affect the substantial rights of the parties.
We believe that the mediation rules are to be construed consistently with MCR 1.105. Here, the error of not timely filing the acceptance with the mediation clerk does not appear to have affected the substantial rights of a party. However, in exercising its discretion on remand, the trial court may consider whether this error had an effect on plaintiffs' substantial rights. Accordingly, we find that the trial court failed to exercise discretion *555 when called on to do so and hence abused its discretion. Stafford, supra.
We therefore reverse and remand to the trial court for reconsideration of defendant's motion and further proceedings consistent with this opinion. We instruct the trial court to exercise its discretion in considering that motion and to construe the mediation rules consistently with MCR 1.105. We do not retain jurisdiction. Defendant, being the prevailing party, may tax costs under MCR 7.219.
NOTES
[1]  Under MCR 2.403(L)(1), failure to file a written acceptance of the mediation evaluation within twenty-eight days after the service of the mediation panel's evaluation constitutes a rejection.
[2]  The Busch case was decided under the old version of MCR 2.403(L)(1), wherein failure to contact the mediation clerk within the twenty-eight days was deemed an acceptance of the award.
