The House Appropriations Committee on Wednesday approved an amendment protecting from deportation recipients of the Deferred Action for Childhood Arrivals (DACA) program that are active-duty military or veterans.

The amendment, approved by a voice vote with no opposition, would block funds from being used to deport DACA recipients who went on to serve in the military.

DACA has become a central bargaining chip in the immigration debate. A “compromise” immigration bill that would have funded President Trump’s border wall and granted legal cover for DACA recipients was voted down earlier in the summer.