Belgium has been given until Monday evening to back an EU trade deal with Canada.
The Canadians have said they are "ready to sign" the historic deal and all 28 EU government back the Comprehensive Economic and Trade Agreement.
However, it has been held up because the regional government of the French-speaking region of Wallonia in Belgium has refused to give the go-ahead, saying the deal is bad for Europe's farmers and gives too much power to global corporate interests.
Reuters reported that EU trade officials are offering tweaks to a political declaration appended to the treaty in a bid to get them to sign.
European Council President Donald Tusk is reportedly due to speak to Belgian Prime Minister Charles Michel by late on Monday to confirm if the deal is on.