Actor Bruce Willis has been diagnosed with frontotemporal dementia, his family said in a statement Thursday.

The 67-year-old Die Hard star was diagnosed with the disease, also known as FTD, after his prior diagnosis of aphasia progressed, his family said.

Unfortunately, challenges with communication are just one symptom of the disease Bruce faces. While this is painful, it is a relief to finally have a clear diagnosis, read the statement shared by his ex-wife, Demi Moore, and posted on a website for The Association for Frontotemporal Degeneration.

The statement was attributed to Willis wife, Emma Heming Willis; Moore; and Willis daughters Rumer, Scout, Tallulah, Mabel and Evelyn.