Following his triumph at Barcelona’s Circuit de Catalunya, Hamilton signalled his intention to sign his next Mercedes deal before August’s three-week summer break.
The Englishman is currently operating on a one-year contract, agreed just six weeks before the new season.
But in an interview with the PA news agency, team principal Wolff says he believes Hamilton’s next deal will be longer than a 12-month add-on.
“Yes, it should be [more than a year],” he said.
“We don’t want to be in a stressful situation every single year where we are absolutely flat-out trying to win races and needing to negotiate. I would rather that doesn’t happen every year.