diff --git a/SysCall/syscall-2.md b/SysCall/syscall-2.md
index af200de..cf9d199 100644
--- a/SysCall/syscall-2.md
+++ b/SysCall/syscall-2.md
@@ -344,7 +344,7 @@ After this we can see the call of the `LOCKDEP_SYS_EXIT` macro from the [arch/x8
 LOCKDEP_SYS_EXIT
 ```
 
-The implementation of this macro depends on the `CONFIG_DEBUG_LOCK_ALLOC` kernel configuration option that allows us to debug locks on exit from a system call. And again, we will not consider it in this chapter, but will return to it in a separate one. In the end of the `entry_SYSCALL_64` function we restore all general purpose registers besides `rxc` and `r11`, because the `rcx` register must contain the return address to the application that called system call and the `r11` register contains the old [flags register](https://en.wikipedia.org/wiki/FLAGS_register). After all general purpose registers are restored, we fill `rcx` with the return address, `r11` register with the flags and `rsp` with the old stack pointer:
+The implementation of this macro depends on the `CONFIG_DEBUG_LOCK_ALLOC` kernel configuration option that allows us to debug locks on exit from a system call. And again, we will not consider it in this chapter, but will return to it in a separate one. In the end of the `entry_SYSCALL_64` function we restore all general purpose registers besides `rcx` and `r11`, because the `rcx` register must contain the return address to the application that called system call and the `r11` register contains the old [flags register](https://en.wikipedia.org/wiki/FLAGS_register). After all general purpose registers are restored, we fill `rcx` with the return address, `r11` register with the flags and `rsp` with the old stack pointer:
 
 ```assembly
 RESTORE_C_REGS_EXCEPT_RCX_R11
diff --git a/contributors.md b/contributors.md
index 36187a5..027c742 100644
--- a/contributors.md
+++ b/contributors.md
@@ -100,3 +100,4 @@ Thank you to all contributors:
 * [Faiz Halde](https://github.com/7coder7)
 * [Andrew Hayes](https://github.com/AndrewRussellHayes)
 * [Matthew Fernandez](https://github.com/Smattr)
+* [Yoshihiro YUNOMAE](https://github.com/yunomae)