diff --git a/actix-http/src/error.rs b/actix-http/src/error.rs
index e6cc0e07f..b062fdf42 100644
--- a/actix-http/src/error.rs
+++ b/actix-http/src/error.rs
@@ -4,7 +4,6 @@ use std::str::Utf8Error;
 use std::string::FromUtf8Error;
 use std::{fmt, io, result};
 
-// use actix::MailboxError;
 pub use actix_threadpool::BlockingError;
 use actix_utils::timeout::TimeoutError;
 #[cfg(feature = "cookies")]
@@ -168,9 +167,6 @@ impl ResponseError for header::InvalidHeaderValueBytes {
 /// `InternalServerError` for `futures::Canceled`
 impl ResponseError for Canceled {}
 
-// /// `InternalServerError` for `actix::MailboxError`
-// impl ResponseError for MailboxError {}
-
 /// A set of errors that can occur during parsing HTTP streams
 #[derive(Debug, Display)]
 pub enum ParseError {