diff --git a/stdlib/http/client.pyi b/stdlib/http/client.pyi
index c936ad4d8..508191556 100644
--- a/stdlib/http/client.pyi
+++ b/stdlib/http/client.pyi
@@ -205,6 +205,8 @@ class UnimplementedFileMode(HTTPException): ...
 
 class IncompleteRead(HTTPException):
     def __init__(self, partial: bytes, expected: int | None = ...) -> None: ...
+    partial: bytes
+    expected: int | None
 
 class ImproperConnectionState(HTTPException): ...
 class CannotSendRequest(ImproperConnectionState): ...