Wilson, 67, pleaded guilty in the Wanganui District Court on November 12 to breaching a condition of his parole last year.
The matter -- in relation to Wilson contacting a woman by telephone when he was instructed not to do so -- was due to go to trial this week.
Instead, Wilson admitted the charge and appeared before Judge Josephine Bouchier today for sentencing.
Crown prosecutor Harry Mallalieu asked for a cumulative sentence of six months in prison.
However, Wilson's lawyer Andrew McKenzie asked that the sentence not be prison, stating the breach was merely a phone call and was only minor.
He said Wilson hadn't offended while in prison for 20 years and the victim had told the parole board she didn't mind the call.
Mr McKenzie also said Wilson would not have been able to escape and the victim was never in any danger.
Wilson is serving 21 years after being sentenced in 1996 for sex and violence offences against women and girls, as well as charges of stupefying and bestiality.
He was paroled to a two-bedroom house, which had been moved onto the Wanganui Prison grounds for the purpose in 2012, after serving 18 years.
His 21-year sentence was scheduled to end on December 1 next year.
Judge Bouchier, in handing down today's sentence of six months in prison, described the offending as "moderately serious".
A second charge of breaching parole was withdrawn.
- Melissa Wishart of the Wanganui Chronicle
