diff --git a/stdlib/2and3/logging/handlers.pyi b/stdlib/2and3/logging/handlers.pyi
index 5b923ea8d..5f1566903 100644
--- a/stdlib/2and3/logging/handlers.pyi
+++ b/stdlib/2and3/logging/handlers.pyi
@@ -170,6 +170,7 @@ class SMTPHandler(Handler):
 
 
 class BufferingHandler(Handler):
+    buffer: List[LogRecord]
     def __init__(self, capacity: int) -> None: ...
     def shouldFlush(self, record: LogRecord) -> bool: ...