diff --git a/core/core.php b/core/core.php
index 1f0b5b69..6e33f607 100755
--- a/core/core.php
+++ b/core/core.php
@@ -25,6 +25,10 @@ class common {
 	const GROUP_MEMBER = 1;
 	const GROUP_MODERATOR = 2;
 	const GROUP_ADMIN = 3;
+	const SIGNATURE_ID = 1;
+	const SIGNATURE_PSEUDO = 2;
+	const SIGNATURE_FIRSTLASTNAME = 3;
+	const SIGNATURE_LASTFIRSTNAME = 4;
 	// Dossier de travail
 	const BACKUP_DIR = 'site/backup/';
 	const DATA_DIR = 'site/data/';
diff --git a/core/module/install/install.php b/core/module/install/install.php
index f71674cc..f359d338 100755
--- a/core/module/install/install.php
+++ b/core/module/install/install.php
@@ -83,7 +83,7 @@ class install extends common {
 						'mail' => $userMail,
 						'password' => $this->getInput('installPassword', helper::FILTER_PASSWORD, true),
 						'pseudo' => $userFirstname,
-						'signature'=> 2 // Pseudo
+						'signature'=> self::SIGNATURE_PSEUDO
 					]
 				]);
 				if ($success === true) { // Formulaire complété envoi du mail
diff --git a/core/module/user/user.php b/core/module/user/user.php
index 085b384c..2e095cc9 100755
--- a/core/module/user/user.php
+++ b/core/module/user/user.php
@@ -26,12 +26,12 @@ class user extends common {
 	];
 	public static $users = [];
 
-	//Paramètre pour choix de la signature
+	//Paramètres pour choix de la signature
 	public static $signature = [
-		1 => 'Identifiant',
-		2 => 'Pseudo',
-		3 => 'Prénom Nom',
-		4 => 'Nom Prénom'
+		self::SIGNATURE_ID => 'Identifiant',
+		self::SIGNATURE_PSEUDO => 'Pseudo',
+		self::SIGNATURE_FIRSTLASTNAME => 'Prénom Nom',
+		self::SIGNATURE_LASTFIRSTNAME => 'Nom Prénom'
 	];