National MP Tau Henare has won an apology from Wikipedia over changes to the website's article about him.
Anyone can edit the online encyclopaedia and John Creser, a former associate, has admitted adding descriptions on multiple occasions of Mr Henare as a "carpetbagger".
Mr Creser listed his source as a blog posting about Mr Henare having stood for New Zealand First and Mauri Pacific before National.
A New Zealand-based Wikipedia content editor known as Gadfium confirmed a user under the name Jcreser was contacted after repeatedly adding the term "carpetbagger" to Mr Henare's listing. He said the "slur" had only a blog as a reference.
"Blogs are not considered reliable sources on Wikipedia. After discussions and warnings he continued adding the slur and other information which was not supported by the references he added, and was blocked for a week."