In December 2009 Pope Benedict XVI authorised the recognition of a miracle (attributed to Manuel's intercession) in the cure of two-year-old Rogelio de Haro Sagra in 1972; the child had suffered from multiple organ failure due to Gram-negative sepsis.

On Saturday, April 2, 2011 Pope Benedict XVI received in audience Angelo Cardinal Amato, Prefect of the Congregation for the Causes of Saints, and approved, among many other advancements of beatification causes, the official recognition of a miracle attributed to Father Clement's intercession.