Vacated and remanded by published opinion. Judge WIDENER wrote the opinion, in which Judge LUTTIG and Judge CHAMBERS concurred.

OPINION

This case arises in the context of an action for disability discrimination under the Americans with Disabilities Act (ADA), 42 U.S.C. §§ 12101-12213, as well as 42 U.S.C. §§ 1983 and 1985. The district court denied Joyce Davis’ Motion to File Second Amended Complaint. We vacate and remand.

Miss Davis filed a charge of discrimination with the Equal Employment Opportunity Commission (EEOC) on October 4, 1995 alleging discrimination on the basis of race. Then, on March 25, 1996, she filed a second charge of discrimination with the .EEOC alleging discrimination based on race, sex, retaliation, and disability. The EEOC mailed Miss Davis a right to sue letter on her first charge of discrimination (race) on April 2, 1996. 1 She, then, timely filed suit in the district court on June 21, 1996 stating causes of action for discrimination based on disability under the ADA, and race, 42 U.S.C. §§ 1981, 1983, and 1985, and common law .torts. She filed her first amended complaint on November 12, 1996 which alleged disability discrimination, and violations of 42 U.S.C. §§ 1983 and 1985.

The EEOC did not mail a right to sue letter on the March 25, 1996 charge of disability and other discrimination until September 30, 1996. 2 Miss Davis claimed that she did not.receive such letter until October 2, 1996. The defendant asserted that Miss Davis received the letter on October 1, 1996 based on the Postal Service’s certified mail records. On December 31, 1996, Miss Davis filed a Motion to File Second Amended Complaint based on the second right to sue letter, which the defendant opposed.

The district court determined that Miss Dav-is received the second right to sue letter on October 1, 1996, and the 90-day statutory limitation period for filing a complaint in court expired on December 30, 1996. Consequently, the district court held that it lacked jurisdiction to hear the complaint contained in the second right to sue letter. Miss Davis then filed a motion to alter or amend the judgment, which the district court denied. On March 26, 1997, the district court entered a final order *628 granting a stipulated dismissal. Miss Davis now appeals to this court.

Federal Rule of Civil Procedure 15(a) provides that once a responsive pleading is filed, “[a] party may amend the party’s pleading only by leave of the court or by written consent of the adverse party; and such leave shall be freely given when justice so requires.” Fed. R.Civ. Pro. 15(a). The disposition of a motion to amend is within the sound discretion of the district court, Foman v. Davis, 371 U.S. 178, 83 S.Ct. 227, 9 L.Ed.2d 222 (1962), and we review for abuse of that discretion.

Defendant correctly argues that the burden rests primarily on the plaintiff to amend the complaint, not upon the defendant to anticipate a new claim. Deasy v. Hill, 833 F.2d 38, 41 (4th Cir. 1987), cert. denied, 485 U.S. 977, 108 S.Ct. 1271, 99 L.Ed.2d 483 (1988). Nevertheless, the plaintiffs second amended complaint did not state a new claim so as to be covered by the 90-day statute of limitations.

Miss Davis received the right to sue letter on the second EEOC charge (disability, etc.) on October 1, 1996. Thus, the 90 day statute of limitations began to run on October 1, 1996 and expired on December 30, 1996. 3 Nevertheless, Miss Davis filed her first amended complaint, alleging disability discrimination in violation of the ADA on November 12, 1996, before the 90-day statute of limitations expired. Upon the filing of the first amended complaint, easily within the 90-day period, the defendant was on notice of the claim, which is all that is required under the Federal Rules of Civil Procedure’s notice pleading. Conley v. Gibson, 355 U.S. 41, 47, 78 S.Ct. 99, 2 L.Ed.2d 80 (1957). The second amended complaint would only have updated the statement of facts included in the complaint to note the issuance of the right to sue letter.

Because the defendant, through the first amended complaint, 4 was on notice with regard to the disability discrimination claim and the second amended complaint merely added additionally obtained facts, the district court erred when it held that .the 90-day statute jurisdictionally barred consideration of the second amended complaint. No other reason appears, or is given, to prevent the filing of the second amended complaint, so the same should be filed.

Accordingly, the judgment of .the district court is vacated and the case is remanded for further proceedings not inconsistent with this opinion.

VACATED AND REMANDED