Bernie Sanders has won the primary contest surveying U.S. Democrats living abroad, adding another nine Democratic delegates to his tally in his race against Hillary Clinton.

Sanders received 69 percent of the vote in the two-week contest, which included votes cast by over 30,000 Democrats living around the world.

Photo Essay: The presidential campaign: Bernie Sanders

Clinton received four of the 13 delegates at stake.

“This political revolution that is gaining momentum across America is now resonating all over the world,” the Sanders campaign said in a statement. “There is a clear path to victory as we begin the second half of the delegate selection process. We are waging a strong campaign and plan to take it all the way to the Democratic National Convention this summer in Philadelphia.”

The victory means a small change in Clinton’s significant lead in pledged delegates to the Democratic National Convention, with her lead over Sanders dropping from 307 delegates to 302.

When superdelegates are included in the count, Clinton leads Sanders, 1,583 delegates to 868.

This story first appeared on NBCNews.com.