Democratic presidential candidate Hillary Clinton has applauded passage of a referendum on same-sex marriage in Ireland, now the first country to legalize such unions through a popular vote.

“Well done, Ireland. -H,” Clinton messaged on Twitter.

(Related: Irish voters resoundingly approve gay marriage.)

The tweet was favorited more than 11,000 times and retweeted by more than 6,500 followers as of Sunday afternoon.

After she left her post as secretary of state in 2013, Clinton recorded a 6-minute video for the Human Rights Campaign (HRC) in which she endorsed marriage equality for the first time.

She included an engaged male gay couple in her announcement video. Shortly afterward, she called on the Supreme Court to strike down restrictive marriage bans nationwide.

(Related: Hillary Clinton stumps from home of married gay couple in Iowa.)