Corrigendum for --- D. Ahman, T. Uustalu. Directed containers as categories. In R. Atkey, N. Krishnaswami, eds., Proc. of MSFP 2016, v. 207 of EPTCS, pp. 89-98. Open Publishing Assoc., 2016. doi:10.4204/eptcs.207.5 --- p 97, l 10 from bottom: The parenthetical remark "as is any category with one object" should read "as is any category with one object and commutative composition, i.e., any commutative monoid seen as a category".