diff --git a/stdlib/os/__init__.pyi b/stdlib/os/__init__.pyi
index 5286c76d1b06..dd4479f9030a 100644
--- a/stdlib/os/__init__.pyi
+++ b/stdlib/os/__init__.pyi
@@ -683,7 +683,7 @@ else:
 extsep: str
 pathsep: str
 defpath: str
-linesep: str
+linesep: Literal["\n", "\r\n"]
 devnull: str
 name: str