fix typo of doc
diff --git a/readme.md b/readme.md
index bba8441..cb34add 100644
--- a/readme.md
+++ b/readme.md
@@ -347,13 +347,13 @@
### Read/Exec mode
Xbyak set Read/Write/Exec mode to memory to run jit code.
-If you want to use Read/Exec mode for security, then specify DontUseProtect for `CodeGenerator` and
+If you want to use Read/Exec mode for security, then specify `DontSetProtectRWE` for `CodeGenerator` and
call `setProtectModeRE()` after generating jit code.
```
struct Code : Xbyak::CodeGenerator {
Code()
- : Xbyak::CodeGenerator(4096, Xbyak::DontUseProtect)
+ : Xbyak::CodeGenerator(4096, Xbyak::DontSetProtectRWE)
{
mov(eax, 123);
ret();