diff --git a/crypto/keys/ed25519.rs b/crypto/keys/ed25519.rs
index 9fe98d04b8ecb5c2f280bc4510a01e45977ce8dc..7adbffe2bd5dd100dab9b05787ba4eb23ba14aa9 100644
--- a/crypto/keys/ed25519.rs
+++ b/crypto/keys/ed25519.rs
@@ -33,6 +33,7 @@ use base58::{FromBase58, FromBase58Error, ToBase58};
 use base64;
 use base64::DecodeError;
 use crypto;
+use self::serde::ser::{Serialize, Serializer};
 
 use super::{BaseConvertionError, PrivateKey as PrivateKeyMethods, PublicKey as PublicKeyMethods};
 
diff --git a/documents/blockchain/v10/documents/certification.rs b/documents/blockchain/v10/documents/certification.rs
index b3e8857ccbe90c902b1e7d8bc307cb61e780aec3..8ab4a2157770ce29960bfdd63640ef9fa0f330e1 100644
--- a/documents/blockchain/v10/documents/certification.rs
+++ b/documents/blockchain/v10/documents/certification.rs
@@ -17,9 +17,9 @@
 
 extern crate serde;
 
-use self::serde::ser::{Serialize, Serializer};
-use duniter_crypto::keys::{ed25519, PublicKey, Signature};
+use duniter_crypto::keys::{PublicKey, Signature, ed25519};
 use regex::Regex;
+use self::serde::ser::{Serialize, Serializer};
 
 use blockchain::v10::documents::{
     StandardTextDocumentParser, TextDocument, TextDocumentBuilder, V10Document,
diff --git a/documents/blockchain/v10/documents/identity.rs b/documents/blockchain/v10/documents/identity.rs
index 6e986565b04dc04222ff93ed31b3509b7fb4b7be..4cc4f04e8fa45a873f0c0ffff852cf414ccf9cd3 100644
--- a/documents/blockchain/v10/documents/identity.rs
+++ b/documents/blockchain/v10/documents/identity.rs
@@ -17,9 +17,9 @@
 
 extern crate serde;
 
-use self::serde::ser::{Serialize, Serializer};
-use duniter_crypto::keys::{ed25519, PublicKey};
+use duniter_crypto::keys::{PublicKey, ed25519};
 use regex::Regex;
+use self::serde::ser::{Serialize, Serializer};
 
 use blockchain::v10::documents::{
     StandardTextDocumentParser, TextDocument, TextDocumentBuilder, V10Document,
diff --git a/documents/blockchain/v10/documents/membership.rs b/documents/blockchain/v10/documents/membership.rs
index 0cc53d51b5521471a4aa2719963e94a18704dbdf..ff31ace7466ebf492952a2e267ddd9393ff5d64d 100644
--- a/documents/blockchain/v10/documents/membership.rs
+++ b/documents/blockchain/v10/documents/membership.rs
@@ -17,9 +17,9 @@
 
 extern crate serde;
 
-use self::serde::ser::{Serialize, Serializer};
-use duniter_crypto::keys::{ed25519, PublicKey};
+use duniter_crypto::keys::{PublicKey, ed25519};
 use regex::Regex;
+use self::serde::ser::{Serialize, Serializer};
 
 use blockchain::v10::documents::{
     StandardTextDocumentParser, TextDocument, TextDocumentBuilder, V10Document,
diff --git a/documents/blockchain/v10/documents/revocation.rs b/documents/blockchain/v10/documents/revocation.rs
index b954ae13b2ead8be53710732e66daadf3ae3eb26..fad5d99aadf5c7e5661450eb5d8999901e408515 100644
--- a/documents/blockchain/v10/documents/revocation.rs
+++ b/documents/blockchain/v10/documents/revocation.rs
@@ -17,9 +17,9 @@
 
 extern crate serde;
 
-use self::serde::ser::{Serialize, Serializer};
-use duniter_crypto::keys::{ed25519, PublicKey, Signature};
+use duniter_crypto::keys::{PublicKey, Signature, ed25519};
 use regex::Regex;
+use self::serde::ser::{Serialize, Serializer};
 
 use blockchain::v10::documents::{
     StandardTextDocumentParser, TextDocument, TextDocumentBuilder, V10Document,