diff --git a/.htaccess b/.htaccess
index 5b415e20..6ebc6c9e 100644
--- a/.htaccess
+++ b/.htaccess
@@ -32,5 +32,4 @@ Options -Indexes
     Options -MultiViews
 </IfModule>
 
-# Attention, surtout ne rien modifier ci-dessous !
 # URL rewriting
\ No newline at end of file
diff --git a/core/class/helper.class.php b/core/class/helper.class.php
index 43bb9a53..d74999af 100644
--- a/core/class/helper.class.php
+++ b/core/class/helper.class.php
@@ -267,7 +267,8 @@ class helper {
 			// Ouvre et scinde le fichier .htaccess
 			$htaccess = explode('# URL rewriting', file_get_contents('.htaccess'));
 			// Retourne un boolean en fonction du contenu de la partie réservée à l'URL rewriting
-			self::$rewriteStatus = (empty($htaccess[1]) === false);
+			//self::$rewriteStatus = (empty($htaccess[1]) === false);
+			self::$rewriteStatus = (strpos($htaccess[1], 'RewriteEngine on') > 0) ? true : false;
 		}
 		return self::$rewriteStatus;
 	}
diff --git a/core/core.php b/core/core.php
index a56bf873..3f374810 100644
--- a/core/core.php
+++ b/core/core.php
@@ -291,7 +291,6 @@ class common {
 			]);;
 		}
 
-
 		// Import version 9
 		if (file_exists(self::DATA_DIR . 'core.json') === true &&
 		$this->getData(['core','dataVersion']) < 10000) {
diff --git a/core/module/config/config.php b/core/module/config/config.php
index 02ed0b45..d38ec9ce 100644
--- a/core/module/config/config.php
+++ b/core/module/config/config.php
@@ -547,17 +547,21 @@ class config extends common {
 					AND helper::checkRewrite() === false
 				) {
 					// Ajout des lignes dans le .htaccess
+					$fileContent = file_get_contents('.htaccess');
+					$rewriteData = 	PHP_EOL .
+									'# URL rewriting' .  PHP_EOL .
+									'<IfModule mod_rewrite.c>' . PHP_EOL .
+									"\tRewriteEngine on" . PHP_EOL .
+									"\tRewriteBase " . helper::baseUrl(false, false) . PHP_EOL .
+									"\tRewriteCond %{REQUEST_FILENAME} !-f" . PHP_EOL .
+									"\tRewriteCond %{REQUEST_FILENAME} !-d" . PHP_EOL .
+									"\tRewriteRule ^(.*)$ index.php?$1 [L]" . PHP_EOL .
+									'</IfModule>'. PHP_EOL .
+									'# URL rewriting' . PHP_EOL ;
+					$fileContent = str_replace('# URL rewriting', $rewriteData, $fileContent);
 					file_put_contents(
 						'.htaccess',
-						PHP_EOL .
-						'<IfModule mod_rewrite.c>' . PHP_EOL .
-						"\tRewriteEngine on" . PHP_EOL .
-						"\tRewriteBase " . helper::baseUrl(false, false) . PHP_EOL .
-						"\tRewriteCond %{REQUEST_FILENAME} !-f" . PHP_EOL .
-						"\tRewriteCond %{REQUEST_FILENAME} !-d" . PHP_EOL .
-						"\tRewriteRule ^(.*)$ index.php?$1 [L]" . PHP_EOL .
-						'</IfModule>',
-						FILE_APPEND
+						$fileContent
 					);
 					// Change le statut de la réécriture d'URL (pour le helper::baseUrl() de la redirection)
 					helper::$rewriteStatus = true;
@@ -568,8 +572,13 @@ class config extends common {
 					AND helper::checkRewrite()
 				) {
 					// Suppression des lignes dans le .htaccess
-					$htaccess = explode('# URL rewriting', file_get_contents('.htaccess'));
-					file_put_contents('.htaccess', $htaccess[0] . '# URL rewriting');
+					$fileContent = file_get_contents('.htaccess');
+					$fileContent = explode('# URL rewriting', $fileContent);
+					$fileContent = $fileContent[0] . '# URL rewriting' . $fileContent[2];
+					file_put_contents(
+						'.htaccess',
+						$fileContent
+					);
 					// Change le statut de la réécriture d'URL (pour le helper::baseUrl() de la redirection)
 					helper::$rewriteStatus = false;
 				}
diff --git a/core/module/install/install.php b/core/module/install/install.php
index 54f677c3..0145b020 100644
--- a/core/module/install/install.php
+++ b/core/module/install/install.php
@@ -252,19 +252,23 @@ class install extends common {
 				$success = true;
 				$rewrite = $this->getInput('data');
 				// Réécriture d'URL
-				if ($rewrite === "true") {
-					$success = (file_put_contents(
+				if ($rewrite === "true") {					// Ajout des lignes dans le .htaccess
+					$fileContent = file_get_contents('.htaccess');
+					$rewriteData = 	PHP_EOL .
+									'# URL rewriting' .  PHP_EOL .
+									'<IfModule mod_rewrite.c>' . PHP_EOL .
+									"\tRewriteEngine on" . PHP_EOL .
+									"\tRewriteBase " . helper::baseUrl(false, false) . PHP_EOL .
+									"\tRewriteCond %{REQUEST_FILENAME} !-f" . PHP_EOL .
+									"\tRewriteCond %{REQUEST_FILENAME} !-d" . PHP_EOL .
+									"\tRewriteRule ^(.*)$ index.php?$1 [L]" . PHP_EOL .
+									'</IfModule>'. PHP_EOL .
+									'# URL rewriting' . PHP_EOL ;
+					$fileContent = str_replace('# URL rewriting', $rewriteData, $fileContent);
+					file_put_contents(
 						'.htaccess',
-						PHP_EOL .
-						'<IfModule mod_rewrite.c>' . PHP_EOL .
-						"\tRewriteEngine on" . PHP_EOL .
-						"\tRewriteBase " . helper::baseUrl(false, false) . PHP_EOL .
-						"\tRewriteCond %{REQUEST_FILENAME} !-f" . PHP_EOL .
-						"\tRewriteCond %{REQUEST_FILENAME} !-d" . PHP_EOL .
-						"\tRewriteRule ^(.*)$ index.php?$1 [L]" . PHP_EOL .
-						'</IfModule>',
-						FILE_APPEND
-					) !== false);
+						$fileContent
+					);
 				}
 				// Recopie htaccess
 				if ($this->getData(['config','autoUpdateHtaccess']) &&
@@ -272,7 +276,7 @@ class install extends common {
 				) {
 						// L'écraser avec le backup
 						$success = copy( '.htaccess.bak' ,'.htaccess' );
-						// Effacer l ebackup
+						// Effacer le backup
 						unlink('.htaccess.bak');
 				}
 				// Valeurs en sortie