Intent on delaying the repeal of the military's ban on homosexuals openly serving, House lawmakers have voted 236-184 to prohibit military chaplains from performing same-sex marriages on base.
Republicans along with a handful of Democrats attached the measure to the $649 billion defense spending bill.
Friday's move blocks funding for training manuals for military chaplains.
GOP lawmakers have been doing all they can to delay President Obama's repeal of the 'Don't Ask, Don't Tell' policy.
Rep. Tim Huelskamp, R-Kan., who sponsored the amendment, said he's concerned that chaplains who refuse to perform the marriages could "find themselves under attack and their careers threatened."
An appeals court in California ruled Thursday that the ban on gays in the military must be lifted "immediately" after the Pentagon gives the okay.
Because of that ruling, the practical effect of Friday's House vote is unclear.
Meanwhile, the Senate still must pass their own version of the measure, and they may not agree to the marriage amendment.
The ban is likely to be lifted before Congress completes the defense spending bill for the budget year beginning Oct. 1.