HUNTER, Justice.
David Cole, Jr., was convicted of robbery, a Class B felony, Ind.Code § 85-42-5-1 (Burns 1984 Supp.), attempted murder, a Class A felony, Ind.Code § 85-42-1-1 (Burns 1979 Repl.) and § 85-41-5-1 (Burns 1979 Repl.), and resisting law enforcement, a Class D felony, Ind.Code § 85-44-8-8 (Burns 1984 Supp.), and was sentenced to concurrent terms of imprisonment of ten years, twenty years, and two years. He was found to be a habitual criminal and we note that he was erroneously sentenced as such to a consecutive thirty-year term. He raises two issues, and we raise the sentencing error, issue number three, sua sponte.
The issues are:
1. Whether his waiver of his constitutional right to a trial by jury was knowingly and voluntarily made;
2. Whether the evidence was sufficient to sustain his convictions for robbery, attempted murder, and resisting law enforcement; and
8. Whether the court erred in the manner in which it sentenced him as a habitual offender.
I.
At a pretrial conference the court granted an agreed continuance of the defendant's cause and the defendant signed a form waiving a trial by jury. His attorney stated to the court that they were "work ing on'" plea negotiations. The court asked the defendant:
"Do you understand, Mr. Cole, when you sign that you are waiving your right to twelve people sitting in that jury box to determine your guilt and innocence?"
Mr. Cole: "I understand."
The court "Do you understand that?"
The court: "She's explained that to you. You're satisfied with her services, are you not?"
Mr. Cole: "Yes, I am, Judge."
The defendant appeared for trial and was denied another request for a continuance. He was tried and convicted by the court. He made no motion to withdraw his waiver.
In support of his claim that he did not voluntarily waive a jury, the defendant submitted with his motion to correct error an affidavit stating that he waived jury only because his attorney advised him it was the only way to obtain the continuance needed to further pursue plea negotiations. He claims he was told his case would be resolved with a plea agreement. Also, he claims he was not advised and did not realize that, should negotiations break down, he had forever waived his right to a jury trial.
He claims his consultations with his at torney were too brief to allow him time to move to withdraw his waiver. However, the affidavit does reveal that the defendant conferred with his attorney prior to trial at which time he expressed his desire for another continuance.
The defendant claims that his allegations regarding the voluntariness of his waiver are uncontradicted elsewhere in the record and, thus, must be accepted as true. See, Harris v. State, (1981) Ind., 427 N.E.2d 658. We believe that the record does contradict the defendant's statement, bearing out his understanding of the meaning and consequences of his waiver. He stated he understood when he was informed unequivocally that he was waiving his right to a jury. At the time of trial he conferred with his attorney, then requested a continuance. No motion to withdraw the waiver was made. The defendant expressed his desire for a jury only after the court convicted him. Furthermore, the fact of the defendant's age, 41 years, and his familiarity with the criminal justice system weakens his claim that he did not understand the consequences of his waiver and that it was made only because he relied