Sigurdarson has enjoyed a remarkable resurgence at Molineux this season, after spending two years out in the wilderness.
Sigurdarson had not played for Wolves since 2013, before he came on as a substitute against Brighton & Hove Albion earlier in the campaign.
The 25-year-old has since gone on to make a further 11 appearances for the Midlands club, but he is yet to score and his latest performance drew criticism.
Sigurdarson looked off the pace as Wolves drew 0-0 with Ipswich Town last weekend, and Jackett admits that is hoping the attacker can kick on between now and the end of the season.
“I didn’t think it was his best half,” the former Millwall boss said. “He’s worked hard since he came back. He’s a very good pro, we’re trying to get the most out of him and give him a platform.
“Certainly the run of games he had up front, a goal in that period would have really helped him.
“He has to keep working away and when he gets his chance, do everything he can to take it.”
Sigurdarson is playing for his future at Wolves, with his contract due to expire at the end of the season.
The forward has not yet been offered a new deal, but if he can make an impression before the season finishes he may be rewarded.
Sigurdarson’s next chance to impress is likely to come in Jackett’s side’s match against Milton Keynes Dons later this evening.