hair line finger board crack

[mynamesucks]

Yesterday when radiusing my figer board i noticed a hair line crack from the nut going down to about the second fret.

Will this need to be repaired or will it be fine if i leave it alone.

[daveq]

I had a similar problem a while ago. Mine was an ebony fretboard so I just used a bit of CA glue and it dissapeared completely. I would try to fix it if you can. If it's a maple board, then maybe others will post info on how to fix it without making it noticable - I'm not sure that CA would do as good of a job for maple. (avoid spraying the activator/catalyst for CA glue on maple- I've heard it turns it green)