diff --git a/htdocs/core/modules/bank/doc/pdf_ban.modules.php b/htdocs/core/modules/bank/doc/pdf_ban.modules.php
index 1a90d03c5c4..97a91951e81 100644
--- a/htdocs/core/modules/bank/doc/pdf_ban.modules.php
+++ b/htdocs/core/modules/bank/doc/pdf_ban.modules.php
@@ -41,7 +41,11 @@ class pdf_ban extends ModeleBankAccountDoc
 	 */
 	public $emetteur;
 
-	var $version = 'development';
+	/**
+     * Dolibarr version of the loaded document
+     * @public string
+     */
+	public $version = 'development';
 
 	/**
 	 *	Constructor
diff --git a/htdocs/core/modules/bank/doc/pdf_sepamandate.modules.php b/htdocs/core/modules/bank/doc/pdf_sepamandate.modules.php
index e9123240709..f62b699b4ef 100644
--- a/htdocs/core/modules/bank/doc/pdf_sepamandate.modules.php
+++ b/htdocs/core/modules/bank/doc/pdf_sepamandate.modules.php
@@ -41,7 +41,11 @@ class pdf_sepamandate extends ModeleBankAccountDoc
 	 */
 	public $emetteur;
 
-	var $version = 'dolibarr';
+	/**
+     * Dolibarr version of the loaded document
+     * @public string
+     */
+	public $version = 'dolibarr';
 
 	/**
 	 *	Constructor
@@ -50,7 +54,7 @@ class pdf_sepamandate extends ModeleBankAccountDoc
 	 */
 	function __construct($db)
 	{
-		global $conf,$langs,$mysoc;
+		global $conf, $langs, $mysoc;
 
 		// Translations
 		$langs->loadLangs(array("main", "bank", "withdrawals", "companies"));
diff --git a/htdocs/core/modules/barcode/doc/phpbarcode.modules.php b/htdocs/core/modules/barcode/doc/phpbarcode.modules.php
index 2cca0e8927d..c9068dc4d26 100644
--- a/htdocs/core/modules/barcode/doc/phpbarcode.modules.php
+++ b/htdocs/core/modules/barcode/doc/phpbarcode.modules.php
@@ -32,8 +32,12 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/barcode.lib.php';    // This is to inc
  */
 class modPhpbarcode extends ModeleBarCode
 {
-	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
-	
+	/**
+     * Dolibarr version of the loaded document
+     * @public string
+     */
+	public $version = 'dolibarr';		// 'development', 'experimental', 'dolibarr'
+
 	/**
 	 * @var string Error code (or message)
 	 */
diff --git a/htdocs/core/modules/barcode/doc/tcpdfbarcode.modules.php b/htdocs/core/modules/barcode/doc/tcpdfbarcode.modules.php
index fcf01131f46..c37f87f17d5 100644
--- a/htdocs/core/modules/barcode/doc/tcpdfbarcode.modules.php
+++ b/htdocs/core/modules/barcode/doc/tcpdfbarcode.modules.php
@@ -31,14 +31,18 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/barcode.lib.php';	   // This is to inc
  */
 class modTcpdfbarcode extends ModeleBarCode
 {
-	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
-	
+	/**
+     * Dolibarr version of the loaded document
+     * @public string
+     */
+	public $version = 'dolibarr';		// 'development', 'experimental', 'dolibarr'
+
 	/**
 	 * @var string Error code (or message)
 	 */
 	public $error='';
-	
-	var $is2d = false;
+
+	public $is2d = false;
 
 	/**
 	 *	Return description of numbering model