Erratum to “The extremal codes of length 42 with automorphism of order 7” [Discrete Math. 190 (1998) 201–213]

This note corrects a mistake in the previous paper where some of the codes are missing and others are repeated. All [42, 21, 8] binary self-dual with an automorphism of order 7 are enumerated. Up to equivalence their number is 29.