WASHINGTON (CBS DC) — President Barack Obama will not dump a bucket of ice water over his head for the increasingly viral video Ice Bucket Challenge. Instead, Obama has opted to donate $100 to the charity fighting Lou Gehrig’s disease.

Ethel Kennedy, 86, the oldest living member of the famous family, challenged Obama over the weekend to accept the challenge to pour a bucket of iced water over his head in a video that aims to raise awareness of Amyotrophic Lateral Sclerosis (ALS). Instead, Obama opted to make a donation directly to an ALS charity this week following his visit to Martha’s Vineyard.

“The President appreciates Mrs. Kennedy thinking of him for the challenge – though his contribution to this effort will be monetary,” the White House told the Boston Globe. “The President will be making a donation to an ALS (Amyotrophic lateral sclerosis) charity this week.”

Ethel Kennedy, the widow of Sen. Robert F. Kennedy, said “Welcome to Cape Cod, Mr. President. I nominate you,” before dumping iced water on her own head in a video filmed at the Kennedy family home and posted to Facebook. More than 20 members of the Kennedy family are seen dumping water on their heads for the ALS awareness social media campaign.

Using Twitter’s #IceBucketChallenge, the campaign has gathered a massive social media presence and has seen participation from scores of celebrities and athletes.