diff --git a/stdlib/email/message.pyi b/stdlib/email/message.pyi
index c6b77cdde..58b1c1cd8 100644
--- a/stdlib/email/message.pyi
+++ b/stdlib/email/message.pyi
@@ -76,8 +76,8 @@ class Message:
     ) -> None: ...
     def __init__(self, policy: Policy = ...) -> None: ...
     # The following two methods are undocumented, but a source code comment states that they are public API
-    def set_raw(self, name: str, value: str) -> None: ...
-    def raw_items(self) -> Iterator[tuple[str, str]]: ...
+    def set_raw(self, name: str, value: _HeaderType) -> None: ...
+    def raw_items(self) -> Iterator[tuple[str, _HeaderType]]: ...
 
 class MIMEPart(Message):
     def __init__(self, policy: Policy | None = ...) -> None: ...