PARIS (Reuters) – France will vote against a five-year extension of the license for weed-killer glyphosate that the European Commission will propose on Monday, a junior French environment minister said.

The decision makes renewal more difficult for the product, which the U.N. health agency (WHO) has said causes cancer. Glyphosate is a key ingredient in Monsanto Co’s top-selling weed-killer Roundup.

“The Commission will put one single proposition on the table on Monday: renewing glyphosate (license) for five years. In view of the risks, France will oppose this proposition and vote against it,” Brune Poirson said in an editorial in French Sunday newspaper Journal du Dimanche.