The government should not ratify the Anti-Counterfeiting Trade Agreement (ACTA), which will combat online piracy, because it could limit the freedom of the internet, a majority of MPs said on Tuesday.
The agreement provides international standards for intellectual property and economy minister Maxime Verhagen says their fears are unfounded.
However, the MPs said ACTA could be in breach of the EU constitution and the EU Human Rights Treaty.
MPs from the green party GroenLinks, left-wing liberals D66, Labour and the Socialists, supported by the anti-immigration PVV, have entered a motion against ratifying the agreement.
There was a demonstration in Amsterdam at the weekend against ACTA.