A 40-year-old U.S. Army reservist in Lincoln has lost his appeal of his conviction for groping a co-worker at the U.S. Army Reserve Center in Lincoln.

Court records say Lancaster County District Court Judge Paul Merritt Jr. denied the appeal of Christopher Hoyt. Hoyt had been convicted in September of misdemeanor sex assault. The woman involved was a civilian at the time.

Authorities say the 21-year-old co-worker testified that Hoyt groped her and made sexual comments at work even after she complained. He said she groped him in return. She was a civilian at the time.

In November Judge Gale Pokorny sentenced Hoyt to six months in jail. Hoyt appealed, saying there wasn’t enough evidence to convict him. Judge Merritt disagreed and earlier this week affirmed the jury verdict.