Marriage Certificate

[neuron]

A relative of mine recently signed as a witness, a marriage certificate along with other records. He was father of the bride. The documentation he signed had been filled in prior to him signing his name on the document. On the documents, his occupation had been given incorrectly as "homemaker", whereas in reality he is a retired engineer.
What are the implications of this as far as the marriage is concerned bearing in mind the warning about giving false information at the bottom of the marriage certificate? Can a new certificate be issued with the correct details?The incident has created some bad feeling as the man concerned has a son who is the last in line with the same surname. This means that in centuries to come, anyone doing research on the equivalent of ancestry.com will find a relative with a rather more demeaning occupation than his true vocation, a concept that does not rest easy with him.