x86 - Assembly string modify access violation

Question

I'm getting "access violation while writing" error in the below code while putting null byte in the string last character checked via Ollydbg, Can anyone please help in in sorting this out, thanks

[SECTION .text]

global _start

_start:

jmp short       stuff  
code:

pop             esi
xor             eax,eax          
mov byte        [esi + 17],al   ; put a null byte byte on [esi + 17]  

stuff:
call            code
db              'This is my string#'

Answer 1

Waitting for answers