Corrigendum 1 to Recommendation ITU-T G.8275.1/Y.1369.1 (2014) contains the following editorial and technical corrections: ? Clarification in the Alternate Best Master Clock Algorithm that the computation of Ebest does not take into account the Announce messages received on a port r where the notSlave attribute is set to TRUE. - Changes Erbest to Ebest in the first decision block in Figure 1. - A decision block and an action block were removed from Figure 1. - Terminology alignment in Figure 2.