Slovenian voters on headed to the polls on Sunday to decide the fate of a law approved by lawmakers that allows gay and lesbian couples to marry in the former communist nation.

The bill was adopted in March.

The conservative group “Children Are At Stake,” which is backed by the Roman Catholic Church, gathered the 40,000 signatures needed to block the law from taking effect and put it up to a popular vote.

The group's Metka Zevnik said that with Christmas approaching, she expects voters to repeal the law.

“Today is a beautiful day,” she told the AP. “Christmas lies ahead, Christmas Eve too, when Christians gather before the nativity scene to honor the holy family and the birth of Jesus.”

Gay rights foes used a similar strategy in 2011 to push back passage of a civil partnership bill that offered gay couples all the rights of marriage except joint adoption.