diff --git a/androscalpel/src/lib.rs b/androscalpel/src/lib.rs
index 0052c06..086daec 100644
--- a/androscalpel/src/lib.rs
+++ b/androscalpel/src/lib.rs
@@ -8,6 +8,7 @@ pub mod class;
 pub mod code;
 pub mod dex_id;
 pub mod dex_string;
+pub mod dex_writer;
 pub mod field;
 pub mod method;
 pub mod method_handle;
@@ -20,6 +21,7 @@ pub use class::*;
 pub use code::*;
 pub use dex_id::*;
 pub use dex_string::*;
+pub use dex_writer::*;
 pub use field::*;
 pub use method::*;
 pub use method_handle::*;
diff --git a/androscalpel_serializer/src/constant.rs b/androscalpel_serializer/src/constant.rs
index 21d606d..7a26840 100644
--- a/androscalpel_serializer/src/constant.rs
+++ b/androscalpel_serializer/src/constant.rs
@@ -6,7 +6,7 @@ pub use androscalpel_serializer_derive::*;
 
 /// [dex-file-magic](https://source.android.com/docs/core/runtime/dex-format#dex-file-magic)
 /// `version` is the Dex version of this file (encoded decimal digit).
-#[derive(Serializable, PartialEq, Eq, Debug)]
+#[derive(Serializable, PartialEq, Eq, Debug, Clone)]
 pub struct DexFileMagic {
     #[prefix([0x64, 0x65, 0x78, 0x0a])]
     #[suffix([0x00])]
@@ -17,7 +17,7 @@ pub struct DexFileMagic {
 ///
 /// The only supported value as of 2023 is [`EndianConstant`]
 /// ([because](https://cs.android.com/android/platform/superproject/main/+/main:art/libdexfile/dex/dex_file_verifier.cc;l=597;drc=397dd78fcdcfed36ee62302e2b90712e2d784364))
-#[derive(Serializable, PartialEq, Eq, Debug)]
+#[derive(Serializable, PartialEq, Eq, Debug, Clone)]
 #[prefix_type(u32)]
 pub enum EndianConstant {
     #[prefix(0x12345678)]
diff --git a/androscalpel_serializer/src/items/header.rs b/androscalpel_serializer/src/items/header.rs
index 8cf2699..03e53b6 100644
--- a/androscalpel_serializer/src/items/header.rs
+++ b/androscalpel_serializer/src/items/header.rs
@@ -5,7 +5,7 @@ use crate::{DexFileMagic, EndianConstant, Serializable};
 
 /// <https://source.android.com/docs/core/runtime/dex-format#header-item>
 /// alignment: 4 bytes
-#[derive(Serializable, PartialEq, Eq, Debug)]
+#[derive(Serializable, Clone, PartialEq, Eq, Debug)]
 pub struct HeaderItem {
     pub magic: DexFileMagic,
     pub checksum: u32,
diff --git a/androscalpel_serializer/src/items/map.rs b/androscalpel_serializer/src/items/map.rs
index 10ea0d6..46baddd 100644
--- a/androscalpel_serializer/src/items/map.rs
+++ b/androscalpel_serializer/src/items/map.rs
@@ -6,7 +6,7 @@ use std::io::Write;
 
 /// <https://source.android.com/docs/core/runtime/dex-format#map-list>
 /// alignment: 4 bytes
-#[derive(Clone, PartialEq, Eq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug, Default)]
 pub struct MapList {
     // pub size: u32,
     pub list: Vec<MapItem>,