this improvisation can harm my guitar?

[Silly Moustache]

Has it occurred to anybody else that the OP person is asking us for halp and may not have English as his/her first language ? I think that we should be more polite and welcoming when this is apparently the case - this IS an international forum.

Secondly , whilst I agree that a new nut would be the best option, ther are places on this planet where obtaining such things are not so easy.

Dear "Enable" If a new nut option is not available to you - the shim under the nut must be exactly the width of the groove, and it could possibly be glued to the nut (NOT) the neck.

Good luck.

[Enable]

im surely going to replace the nut, i just wanted to know if this improvisation could harm the guitar until i will take it to luthier.

thanks for the help !

[stanron]

It shouldn't damage the guitar but looking at how high the strings are above the first fret I suspect the guitar will feel difficult to play without a capo.

[Ned Milburn]

Originally Posted by Enable

im surely going to replace the nut, i just wanted to know if this improvisation could harm the guitar until i will take it to luthier.

thanks for the help !

It could possibly damage the edge of the headstock lamination. It would not be a structural issue, but an aesthetic issue.