A day after New Hampshire Senator Jeanne Shaheen intervened, the state's National Guard has reversed its decision forbidding Chief Warrant Officer Charlie Morgan from including her wife, Karen Morgan, in an upcoming event, the Union Leader reported.

The yellow-ribbon event in North Conway this weekend is designed to assist returning soldiers and their families deal with the transition to civilian life.

New Hampshire is among the six states where gay and lesbian couples may legally marry.

Officials made their decision after the Pentagon ended “Don't Ask, Don't Tell,” the policy which banned gay and bisexual soldiers from serving openly.

Shaheen raised concerns about the ruling in a letter sent Tuesday to Defense Secretary Leon Panetta.

According to Shaheen, the National Guard made its decision based on the Defense of Marriage Act (DOMA), the 1996 law which bars federal agencies and the military from recognizing the legal marriages of gay couples. But guardsmen are allowed to bring any one person of their choosing to the event.

“The fact is, she shouldn't have needed a special waiver and shouldn't have needed to raise the issue in the first place,” Shaheen said. “We need to repeal the Defense of Marriage Act in order to address all of the issue to make sure everybody is treated fairly.”

Aubrey Sarvis, executive director of Servicemembers Legal Defense Network (SLDN), praised Shaheen for her assistance.

“At SLDN, we salute Senator Shaheen for her efforts, but the truth is that this service member should not have had to call on her senator to intervene at the Pentagon in order for her family to be recognized and supported in the same ways as her straight, married counterparts.”

“We again call upon Secretary Panetta to confer now all the benefits and recognition he is authorized to extend to gay and lesbian service members and their families,” he added.

(Related: Gay marriage in the military? SLDN prepares for next fight.)