Slovenia’s plans to liberalize its online sports betting market hit a roadblock on Tuesday as the legislature’s upper chamber vetoed the measure.

Last week, Slovenia’s National Assembly surprised analysts by voting 35-26 in favor of a plan that would end the state-owned Športna Loterija’s sports betting monopoly and allow European Economic Community-licensed operators to apply for online sports betting licenses.

But despite the favorable vote, the measure had never found favor with the ruling government coalition, and Tuesday saw the National Council vote 18-12 in favor of a suspensory veto of the sports betting bill. For the measure to be approved now will require a second vote in the National Assembly that will need to pass by a two-thirds majority.

The betting liberalization plan was spearheaded by MP Branko Zorman, who claims that 85% of the nation’s gambling turnover is currently being handled by international online gambling sites. Zorman believes bringing some of these international sites into the regulated sector will dramatically boost betting revenue and increase funding for Slovenian sports and charitable organizations.