Congress’s must-pass defense policy bill will be the vehicle to stop Russian President Vladimir Putin’s $11 billion project to deliver natural gas to Europe via a new pipeline from Russia to Germany, a top U.S. lawmaker revealed Friday.

Sanctions on companies involved in the Nord Stream 2 pipeline have been added to the draft 2020 National Defense Authorization Act, Senate Foreign Relations Committee Chairman Jim Risch told Defense News on the sidelines of the Halifax International Security Forum.

The inclusion of the sanctions in the bill is a strong sign, but House and Senate lawmakers have yet to reach a final deal on the massive bill.

“The reason for the push is that this window is closing. A lot of Nord Stream is done already,” said Risch, R-Idaho, adding he believes the sanctions will persuade the construction firms involved to stop work on the project.

Read more: defense news