diff --git a/core/class/layout.class.php b/core/class/layout.class.php
index 3040f7ff..49af25db 100644
--- a/core/class/layout.class.php
+++ b/core/class/layout.class.php
@@ -1230,8 +1230,8 @@ class layout extends common
     public function showi18n($lang)
     {
         if (
-            (isset($_SESSION['ZWII_CONTENT'])
-                and $_SESSION['ZWII_CONTENT'] === $lang
+            (isset($_SESSION['ZWII_SITE_CONTENT'])
+                and $_SESSION['ZWII_SITE_CONTENT'] === $lang
             )
         ) {
             $select = ' class="i18nFlagSelected" ';
diff --git a/core/class/template.class.php b/core/class/template.class.php
index a9cb67cb..97548f8e 100644
--- a/core/class/template.class.php
+++ b/core/class/template.class.php
@@ -494,8 +494,8 @@ class template
                 $lang = $langId;
                 break;
             case 'selected':
-                if (isset($_SESSION['ZWII_CONTENT'])) {
-                    $lang = $_SESSION['ZWII_CONTENT'];
+                if (isset($_SESSION['ZWII_SITE_CONTENT'])) {
+                    $lang = $_SESSION['ZWII_SITE_CONTENT'];
                 } else {
                     $lang = 'fr_FR';
                 }
diff --git a/core/core.js.php b/core/core.js.php
index 0bdc8e6b..9a797b30 100644
--- a/core/core.js.php
+++ b/core/core.js.php
@@ -532,7 +532,7 @@ $(document).ready(function () {
         var langSelected = $(this).val();
         var langSelected = langSelected.split("/");
         // Lit le cookie de langue
-        var langSession = "<?php echo isset($_SESSION['ZWII_CONTENT']) ? $_SESSION['ZWII_CONTENT'] : '';?>";
+        var langSession = "<?php echo isset($_SESSION['ZWII_SITE_CONTENT']) ? $_SESSION['ZWII_SITE_CONTENT'] : '';?>";
         // Découpe l'URL pour exclure le changement de page avec le thème
         var url = window.location;
         var currentUrl = url.href.split("/");
diff --git a/core/core.php b/core/core.php
index b001109c..8bdcca18 100644
--- a/core/core.php
+++ b/core/core.php
@@ -341,15 +341,15 @@ class common
 		}
 
 		// Déterminer la langue du contenu du site
-		if (isset($_SESSION['ZWII_CONTENT'])) {
+		if (isset($_SESSION['ZWII_SITE_CONTENT'])) {
 			// Déterminé par la session présente
-			self::$siteContent = $_SESSION['ZWII_CONTENT'];
+			self::$siteContent = $_SESSION['ZWII_SITE_CONTENT'];
 		} else {
 			// Détermine la langue par défaut
 			foreach (self::$languages as $key => $value) {
 				if (file_exists(self::DATA_DIR . $key . '/.default')) {
 					self::$siteContent = $key;
-					$_SESSION['ZWII_CONTENT'] = $key;
+					$_SESSION['ZWII_SITE_CONTENT'] = $key;
 					break;
 				}
 			}
diff --git a/core/include/update.inc.php b/core/include/update.inc.php
index 004d81aa..1d809e3b 100644
--- a/core/include/update.inc.php
+++ b/core/include/update.inc.php
@@ -1068,7 +1068,7 @@ if ($this->getData(['core', 'dataVersion']) < 13000) {
 			}
 		}
 	}
-	$_SESSION['ZWII_CONTENT'] = $currentlanguage;
+	$_SESSION['ZWII_SITE_CONTENT'] = $currentlanguage;
 
 	// Supprime la clé OpenOgraph
 	$this->deleteData(['config', 'seo', 'keyApi']);
diff --git a/core/module/install/install.php b/core/module/install/install.php
index e64bd43e..e5a677aa 100644
--- a/core/module/install/install.php
+++ b/core/module/install/install.php
@@ -119,24 +119,24 @@ class install extends common
 				self::$i18nUI = $_SESSION['ZWII_UI'];
 				self::$i18nUI = array_key_exists(self::$i18nUI, self::$languages) ? self::$i18nUI : 'fr_FR';
 				// par défaut le contenu est la langue d'installation
-				$_SESSION['ZWII_CONTENT'] = self::$i18nUI;
+				$_SESSION['ZWII_SITE_CONTENT'] = self::$i18nUI;
 
 				// Création du dossier de langue avec le marqueur de langue par défaut
-				if (!is_dir(self::DATA_DIR . $_SESSION['ZWII_CONTENT'])) {
-					mkdir(self::DATA_DIR . $_SESSION['ZWII_CONTENT']);
-					touch(self::DATA_DIR . $_SESSION['ZWII_CONTENT'] . '/.default');
+				if (!is_dir(self::DATA_DIR . $_SESSION['ZWII_SITE_CONTENT'])) {
+					mkdir(self::DATA_DIR . $_SESSION['ZWII_SITE_CONTENT']);
+					touch(self::DATA_DIR . $_SESSION['ZWII_SITE_CONTENT'] . '/.default');
 				}
 
 				// Installation du site de test
 				if (
 					$this->getInput('installDefaultData', helper::FILTER_BOOLEAN) === false
-					&& $_SESSION['ZWII_CONTENT'] === 'fr_FR'
+					&& $_SESSION['ZWII_SITE_CONTENT'] === 'fr_FR'
 				) {
 					$sample = true;
 				}
-				$this->initData('page', $_SESSION['ZWII_CONTENT'], $sample);
-				$this->initData('module', $_SESSION['ZWII_CONTENT'], $sample);
-				$this->initData('locale', $_SESSION['ZWII_CONTENT'], $sample);
+				$this->initData('page', $_SESSION['ZWII_SITE_CONTENT'], $sample);
+				$this->initData('module', $_SESSION['ZWII_SITE_CONTENT'], $sample);
+				$this->initData('locale', $_SESSION['ZWII_SITE_CONTENT'], $sample);
 
 				// Création de l'utilisateur si les données sont complétées.
 				// success retour de l'enregistrement des données
@@ -153,7 +153,7 @@ class install extends common
 						'signature' => 1,
 						'mail' => $userMail,
 						'password' => $this->getInput('installPassword', helper::FILTER_PASSWORD, true),
-						'language' => $_SESSION['ZWII_CONTENT']
+						'language' => $_SESSION['ZWII_SITE_CONTENT']
 					]
 				]);
 
@@ -172,7 +172,7 @@ class install extends common
 
 				// Nettoyage fr par défaut
 				if (
-					$_SESSION['ZWII_CONTENT'] !== 'fr_FR'
+					$_SESSION['ZWII_SITE_CONTENT'] !== 'fr_FR'
 				) {
 					if (is_dir(self::DATA_DIR . 'fr_FR'))
 						$this->deleteDir(self::DATA_DIR . 'fr_FR');
diff --git a/core/module/language/language.php b/core/module/language/language.php
index 6e5e1e04..c9e9fb2e 100644
--- a/core/module/language/language.php
+++ b/core/module/language/language.php
@@ -197,7 +197,7 @@ class language extends common
 				) {
 					if (file_exists(self::DATA_DIR . $key . '/.default')) {
 						$messageLocale = helper::translate('Langue par défaut');
-					} elseif (isset($_SESSION['ZWII_CONTENT']) && $_SESSION['ZWII_CONTENT'] === $key) {
+					} elseif (isset($_SESSION['ZWII_SITE_CONTENT']) && $_SESSION['ZWII_SITE_CONTENT'] === $key) {
 						$messageLocale = helper::translate('Langue du site sélectionnée');
 					} else {
 						$messageLocale = '';
@@ -700,7 +700,7 @@ class language extends common
 		) {
 
 			// Stocker la sélection
-			$_SESSION['ZWII_CONTENT'] = $lang;
+			$_SESSION['ZWII_SITE_CONTENT'] = $lang;
 		}
 
 		// Valeurs en sortie