We first address the question of whether plaintiffs cause of action is barred by the statute of limitations (G.S. 1-52(9)) and conclude that it is not. This statute specifically provides that actions involving fraud or mistake shall not be deemed to have accrued until discovery. The evidence clearly shows the plaintiff discovered the mistake in 1977 when she attempted to sell her home and immediately took steps to reform her deed when she learned of the purported conveyance.

We do not agree with the contention of the defendant that plaintiff, a 54-year old seamstress, is estopped to assert her claim now, simply because in 1971 she had read a long legal *430document conveying twenty tracts of land, describing them in repetitive and sophisticated language, one tract of which described the parcel involved in this lawsuit. Neither do we conclude the fact that she stopped paying taxes on the 13-acre tract is conclusive evidence that plaintiff knew she had conveyed the land in 1971. There was no evidence that any of the grantees had knowingly exercised acts of ownership over the land in question. This assignment of error is without merit.

Next, we consider whether there was a mutual mistake in the deed from Johnsie A. Hice to Ray Hice and Everette Welch, which included the 13-acre tract. If a solemn document like a deed is to be revised by our courts, proof of mistake must be strong, cogent and convincing. Hege v. Sellers, 241 N.C. 240, 84 S.E. 2d 892 (1954). Walker, J., speaking for the Court in Clements v. Insurance Co., 155 N.C. 57, 61, 70 S.E. 1076 (1911), states that:

There is always a strong presumption in favor of the correctness of the instrument as written and executed, for it must be assumed that the parties knew what they had agreed and have chosen fit and proper words to express that agreement in its entirety. (Emphasis added.)

In the case of Isley v. Brown, 253 N.C. 791, 793, 117 S.E. 2d 821 (1961), Chief Justice Winborne, quoting Hoke, J., says:

There is no rule in our system of jurisprudence that has a greater tendency to maintain the stability of titles and the security of investments than that which upholds the integrity of a solemn written deed ...

Defendant contends there was no mistake in the deed from plaintiff to Hice and Welch; that plaintiff selected her own lawyer to prepare the deed and furnished the old deeds for use in preparation; that the tract in question was separated from her homeplace by a stream and was mountainous —just the type of land she intended to convey to Hice, her cousin by marriage, and Welch; and that plaintiff read the deed. Defendant further alleges that Ray Hice was raised on the mountain land, knew where it was, and knew what he was receiving under the deed.

*431Plaintiff offered evidence which tended to show that she was a 54-year old widow, engaged in settling her husband’s estate at the time of the sale; that she had gone no further in school than the seventh grade and was currently employed as a seamstress; that she had not engaged in any real estate transactions prior to this time, and never had been to a lawyer; that she intended to sell the mountain tract, which consisted of 1200 acres, and not her homeplace; that the homeplace had been fenced, and cattle and horses ran on it; and that at the time of the transaction plaintiff was not aware of the fact that her “homeplace” consisted of two tracts.

Dickson Whisnant, a witness for the plaintiff, testified that he was the attorney who prepared the deed to Hice and Welch from deeds brought to him by plaintiff; that all of the land to be sold was contiguous mountain land; that he later (in 1977) discovered the 13-acre tract was not contiguous; that he remarked to plaintiff that this property was not supposed to be in the deed; that including it was his mistake; that he had talked with Mr. Miller who agreed the tract was not supposed to be in the deed (which was denied by Mr. Miller in his testimony); and that he prepared a deed of reconveyance from Hi-Mil, Inc., to plaintiff which was never executed.

A surveyor for the defendant testified that he was unable to fit the 13-acre tract into the plat of the mountain tract prepared for Hi-Mil, Inc. Defendant’s attorney further testified that he was unable to fit the 13-acre tract into the boundary as a part of his title examination for Hi-Mil, Inc.

Ray Hice, a cousin of plaintiffs deceased husband, testified that he had lived in the area all his life; that he negotiated for the purchase of the mountain tract; that this tract is approximately three miles from where plaintiff lives and is not contiguous to her homeplace; that the land he purchased consisted of contiguous tracts, totaling 900 acres; that there had not been a survey of the property at the time he purchased it; that none of the 25 acres (homeplace) was to be included; and that he never exercised any dominion over the 25-acre tract where plaintiffs homeplace is.

*432We conclude there is ample testimony offered by the plaintiff to rebut the presumption relied on by the defendant that the deed is correct as written and executed.

Next, we consider whether Hi-Mil, Inc., is an innocent bona fide purchaser for value. Defendant contends that it is, relying on the presumptions set out above and arguing that the knowledge of any mistake in the deed could not be imputed to the defendant corporation.

It is elementary that as a general rule reformation will not be granted if it appears that the rights of a bona fide purchaser will be prejudiced. Lowery v. Wilson, 214 N.C. 800, 200 S.E. 861 (1939); Dameron v. Lumber Co., 161 N.C. 495, 77 S.E. 694 (1913). Plaintiff contends, however, that she presented sufficient evidence of a mistake in the deed from plaintiff to Hice and Welch in 1971, and that such knowledge of the mistake was imputed to the defendant through its shareholder/director/ officer, Ray Hice.

Defendant replies, contending that knowledge by Ray Hice of the mistake cannot be imputed for two reasons:

(1) Ray Hice had no knowledge of any mistake at any time until after the title was taken by the defendant. Defendant points out that a survey of the mountain tract was not made until after the property was purchased by it; that title examination was done simultaneously with the survey; and plaintiff discovered in 1977 the error when she tried to sell her homeplace.

Defendant fails to recognize that the real mistake is plaintiffs conveyance of lands she never intended to sell — not the drafting error by the lawyer. The drafting was merely a ministerial act. A careful reading of all the evidence indicates that Johnsie Hice intended to sell and Ray Hice and Everette Welch intended to purchase the 1200-acre mountain tract. This they did, but more was mistakenly conveyed, and this was error which equity ought to correct. Through all of the mesne conveyances down to the defendant all parties intended to buy only the mountain tract, and it was understood that only the moun*433tain tract was being conveyed. There is no direct evidence of any party’s intent ever to sell the 13-acre portion of the home-place and no intention by any party to buy. In each deed, however, it was erroneously included. Each grantor to a mesne conveyance mistakenly sold more, and each grantee received more than was intended.

(2) Although Ray Hice was a stockholder/ director/officer of Hi-Mil, Inc., the corporation was not chargeable with notice of facts known to a director in a transaction between himself and the corporation in which he was acting for himself and not for the corporation. Gardiner v. Equitable Office Building Corp., 273 F. 441 (2nd Cir. 1921).

We do not find the conveyance by Ray Hice to Hi-Mil, Inc., to be strictly at arm’s length. Rather, we conclude that Hice’s interest and that of the corporation were clearly aligned. Both parties desired to develop the property for their mutual benefit, whether as stockholder or an individual owner. Ray Hice at that time is presumed to have known what he owned and was selling and what the corporation in which he owned 50% of the stock was buying. The knowledge of Ray Hice became the knowledge of the corporation. Wilson v. Development Co., 276 N.C. 198, 171 S.E. 2d 873 (1970); Whitten v. AMC/Jeep, Inc., 292 N.C. 84, 231 S.E. 2d 891 (1977).

The further argument of the appellant that Ray Hice was acting primarily for himself since he would be able to sell his interest in the property and absolve himself from liability for the balance under a mortgage assumed by the defendant and due plaintiff does not impress us. He would still remain secondarily liable.

The defendant has title to a tract of land which it never intended to buy. The plaintiff never intended to sell the 13-acre tract of land. Equity has a duty to correct such mistake as is involved in this case.

We conclude there were issues of fact for the reasons set out *434above and that Hi-Mil, Inc.’s motion for summary judgment should have been overruled. The trial judge was correct in proceeding to trial. Motions to dismiss made by the defendant at the end of plaintiffs evidence and at the end of all the evidence should have been overruled.

The Order and Judgment of the trial judge are

Affirmed.