I think yes! It is the alternative form (and please report it if this is rejected):

Noun

mwuguzi (m-wa class, plural wauguzi)

1) Alternative form of muuguzi

From Wiktionary: https://en.wiktionary.org/wiki/mwuguzi

New material is often added to the lessons. With Dutch I had gone through all the lessons a couple times and I was on my way to bringing all the sections up to full strength when I found the lessons reorganized, new content in many sections, names of sections changed, completely new sections added. Not a bad thing, I think, since I have a new stuff to learn rather than just reviewing the old material. What I would really, really like to see added in the case of Swahili is audio.