He has scored 18 goals in 69 appearances for the Easter Road side, including two in the League Cup final win over Kilmarnock in 2007.
Meanwhile, Paatelainen will be without Merouane Zemmama, Steven Thicot and Kevin McCann for this weekend's trip to Inverness.
The club are also still awaiting international clearance for striker Steven Pinau, who signed on loan from Italian side Genoa last week.
Belgium goalkeeper Yves Makalamby is due to return from the Olympics next week after his country's involvement in the third/fourth play-off in Beijing.
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