TOPEKA, Kan. (AP) — The Kansas secretary of state wants a federal court to set aside a default judgment against him for failing to file a timely response to a lawsuit challenging the constitutionality of a state law requiring prospective voters to prove they are U.S. citizens.

A federal court clerk earlier this week entered Secretary of State Kris Kobach as being in default in a case concerning the state’s proof-of-citizenship requirement because Kobach had failed to file documents with the court on time.

The Wichita Eagle reports that in a motion filed Friday, Kobach asked the court to set aside the default judgment, saying he believed the court had suspended certain deadlines in the case.

The lawsuit contends the proof-of-citizenship requirement violates voters’ constitutional rights. Supporters say it prevents voter fraud.