Lewis Castro, Texas prisoner # 52284, appeals the district court’s dismissal without prejudice of his 42 U.S.C. § 1983 civil rights complaint for failure to exhaust administrative remedies. “No action shall be brought with respect to prison conditions under section 1983 ... by a prisoner confined in any jail, prison, or other correctional facility until such administrative remedies as are available are exhausted.” 42 U.S.C. § 1997e(a). This court reviews de novo the dismissal of an inmate’s 42 U.S.C. § 1983 suit for failure to exhaust administrative remedies. Richardson v. Spurlock, 260 F.3d 495, 499 (5th Cir. 2001).

Castro admits that he did not file a Step 2 grievance before he filed his civil rights complaint. Castro asserts that he did not file a Step 2 grievance because he was unaware of the requirements of 42 U.S.C. § 1997e(a) and because the Interoffice Communication from the Internal Affairs Division (“IAD”) was a decision from the highest authority in the grievance system, and, as a result, Castro was not required to file a Step 2 grievance.

*854 First, ignorance of the law will not reheve Castro of his obligation to exhaust the available administrative remedies. See Fisher v. Johnson, 174 F.3d 710, 712-14 (5th Cir. 1999). Second, the administrative decision to the Step 1 grievance informed Castro that his complaint was mandatorily referred to the IAD and that if he was “dissatisfied with the Step 1 response, [he] may submit a Step 2 (1-128) to the Unit Grievance Investigator within 15 days from the Step 1 response.” There was no indication on the Step 1 administrative decision that Castro should not appeal, did not have the right to appeal, or should wait for IAD’s response to appeal. Castro has not shown that the district court erred in its ruling. See also Crain v. Prasifka, 97 S.W.3d 867, 870 (Tex.App. 2003) (Step 2 grievance still mandatory even though Step 1 grievance forwarded to the IAD).

Accordingly, the judgment of the district court is AFFIRMED.