Adel Daoud, 19, a U.S. citizen, was arrested in September after allegedly attempting to detonate what prosecutors said he believed was a car bomb outside the downtown bar.
During his arraignment, Daoud was asked several routine questions, including one about whether he understood he could be sentenced to life in prison, the Chicago Tribune reported. He answered by asking U.S. District Judge Sharon Johnson Coleman whether the sentence could be longer than that, the newspaper said.
When the judge asked him if he was under a psychiatrist's care, he said, "I don't think so, no."
Daoud's attorney, Thomas Anthony Durkin, said after the arraignment the wisecracks suggested Daoud doesn't believe "this is happening to him. He's a young kid."
Daoud was indicted Sept. 21 on charges of attempting to use a weapon of mass destruction and attempting to damage or destroy a building by means of an explosive.
Prosecutors said Daoud was arrested after an undercover investigation during which he chose a target and worked on the alleged plot. Undercover law enforcement personnel supplied Daoud with the inert explosives he allegedly tried to detonate, prosecutors said.