diff --git a/src/http/header/accept_encoding.rs b/src/http/header/accept_encoding.rs
index 0440153ae..f156dd7ea 100644
--- a/src/http/header/accept_encoding.rs
+++ b/src/http/header/accept_encoding.rs
@@ -1,8 +1,9 @@
-// TODO: reinstate module
+use actix_http::header::QualityItem;
 
-use header::{Encoding, QualityItem};
+use super::{common_header, Encoding};
+use crate::http::header;
 
-header! {
+common_header! {
     /// `Accept-Encoding` header, defined
     /// in [RFC 7231](https://datatracker.ietf.org/doc/html/rfc7231#section-5.3.4)
     ///
@@ -65,14 +66,14 @@ header! {
 
     test_parse_and_format {
         // From the RFC
-        crate::http::header::common_header_test!(test1, vec![b"compress, gzip"]);
-        crate::http::header::common_header_test!(test2, vec![b""], Some(AcceptEncoding(vec![])));
-        crate::http::header::common_header_test!(test3, vec![b"*"]);
+        common_header_test!(test1, vec![b"compress, gzip"]);
+        common_header_test!(test2, vec![b""], Some(AcceptEncoding(vec![])));
+        common_header_test!(test3, vec![b"*"]);
 
         // Note: Removed quality 1 from gzip
-        crate::http::header::common_header_test!(test4, vec![b"compress;q=0.5, gzip"]);
+        common_header_test!(test4, vec![b"compress;q=0.5, gzip"]);
 
         // Note: Removed quality 1 from gzip
-        crate::http::header::common_header_test!(test5, vec![b"gzip, identity; q=0.5, *;q=0"]);
+        common_header_test!(test5, vec![b"gzip, identity; q=0.5, *;q=0"]);
     }
 }
diff --git a/src/http/header/cache_control.rs b/src/http/header/cache_control.rs
index 8c348aa0d..1dd2d268c 100644
--- a/src/http/header/cache_control.rs
+++ b/src/http/header/cache_control.rs
@@ -45,10 +45,13 @@ common_header! {
     ///     CacheDirective::Extension("foo".to_owned(), Some("bar".to_owned())),
     /// ]));
     /// ```
-
     (CacheControl, header::CACHE_CONTROL) => (CacheDirective)+
 
     test_parse_and_format {
+        common_header_test!(no_headers, vec![b""; 0], None);
+        common_header_test!(empty_header, vec![b""; 1], None);
+        common_header_test!(bad_syntax, vec![b"foo="], None);
+
         common_header_test!(
             multiple_headers,
             vec![&b"no-cache"[..], &b"private"[..]],
@@ -76,19 +79,14 @@ common_header! {
             ]))
         );
 
-        common_header_test!(bad_syntax, vec![b"foo="], None);
-
-        common_header_test!(empty_header, vec![b""], None);
-
         #[test]
         fn parse_quote_form() {
-            use actix_http::test::TestRequest;
-            let req = TestRequest::default()
+            let req = test::TestRequest::default()
                 .insert_header((header::CACHE_CONTROL, "max-age=\"200\""))
                 .finish();
-            let cache = Header::parse(&req);
+
             assert_eq!(
-                cache.ok(),
+                Header::parse(&req).ok(),
                 Some(CacheControl(vec![CacheDirective::MaxAge(200)]))
             )
         }
diff --git a/src/http/header/encoding.rs b/src/http/header/encoding.rs
index ce31c100f..a61edda67 100644
--- a/src/http/header/encoding.rs
+++ b/src/http/header/encoding.rs
@@ -4,26 +4,33 @@ pub use self::Encoding::{
     Brotli, Chunked, Compress, Deflate, EncodingExt, Gzip, Identity, Trailers, Zstd,
 };
 
-/// A value to represent an encoding used in `Transfer-Encoding`
-/// or `Accept-Encoding` header.
-#[derive(Clone, PartialEq, Debug)]
+/// A value to represent an encoding used in `Transfer-Encoding` or `Accept-Encoding` header.
+#[derive(Debug, Clone, PartialEq, Eq)]
 pub enum Encoding {
     /// The `chunked` encoding.
     Chunked,
+
     /// The `br` encoding.
     Brotli,
+
     /// The `gzip` encoding.
     Gzip,
+
     /// The `deflate` encoding.
     Deflate,
+
     /// The `compress` encoding.
     Compress,
+
     /// The `identity` encoding.
     Identity,
+
     /// The `trailers` encoding.
     Trailers,
+
     /// The `zstd` encoding.
     Zstd,
+
     /// Some other encoding that is less common, can be any String.
     EncodingExt(String),
 }
diff --git a/src/http/header/macros.rs b/src/http/header/macros.rs
index 02004c013..886602d3a 100644
--- a/src/http/header/macros.rs
+++ b/src/http/header/macros.rs
@@ -9,7 +9,7 @@ macro_rules! common_header_test_module {
             use ::mime::*;
 
             use $crate::http::header::{self, *};
-            use super::$id as HeaderField;
+            use super::{$id as HeaderField, *};
 
             $($tf)*
         }
@@ -149,7 +149,7 @@ macro_rules! common_header {
             #[inline]
             fn parse<T: $crate::HttpMessage>(msg: &T) -> Result<Self, $crate::error::ParseError>{
                 let headers = msg.headers().get_all(Self::name());
-                println!("{:?}", &headers);
+
                 $crate::http::header::from_comma_delimited(headers)
                     .and_then(|items| {
                         if items.is_empty() {
diff --git a/src/http/header/mod.rs b/src/http/header/mod.rs
index 5c6c92969..a81019ef5 100644
--- a/src/http/header/mod.rs
+++ b/src/http/header/mod.rs
@@ -17,9 +17,9 @@ use bytes::{Bytes, BytesMut};
 // - header parsing utils
 pub use actix_http::http::header::*;
 
-mod accept_charset;
-// mod accept_encoding;
 mod accept;
+mod accept_charset;
+mod accept_encoding;
 mod accept_language;
 mod allow;
 mod any_or_some;