Just for fun, at that suggestion, I glued it. I don't see how it will withstand the pressure of two strings (the break runs under one of the tuning pegs), but I have some Gorilla Wood Glue, so why not.
View attachment 98100
I have not seen tuners like that on low cost Mahalos. The current models seem to have a dolphin shaped metal bracket on the back of the headstock. The older models I have seen have different tuning machines. Do you know what model it is?