diff --git a/4.2/1changes.md b/4.2/1changes.md
index afc638f..4fb3e7f 100644
--- a/4.2/1changes.md
+++ b/4.2/1changes.md
@@ -371,6 +371,7 @@ crate-type = ["cdylib"] # cdylib означает, что нужно собра
 ```rust
 use std::ffi::CStr;
 
+#[repr(C)]
 pub struct Cased {
     cstring: *const c_char,
     case: bool, // true for uppercase,