The executive board of the Illinois chapter of the AFL-CIO voted Thursday in favor of a resolution calling on the Illinois House to approve a gay marriage bill.

The measure stalled in the House after clearing the Senate on Valentine's Day. Activist hope to approve the bill in the House during the fall session, but the bill's champion in the House, Rep. Greg Harris, has signaled he might wait until January before calling for a vote.

(Related: Illinois gay marriage bill might not see House vote this year.)

According to the AP, the resolution states that the AFL-CIO joins faith communities, civil rights organizations, President Barack Obama and its own unions in supporting “marriage equality legislation that effectively protects religious freedom.”

The federation of trade unions acted a day before a Cook County judge is expected to rule on a lawsuit challenging the constitutionality of Illinois' law limiting marriage to heterosexual couples.

(Related: Illinois judge to issue gay marriage ruling Friday.)