diff --git a/htdocs/core/modules/barcode/mod_barcode_product_standard.php b/htdocs/core/modules/barcode/mod_barcode_product_standard.php
index 42ce154c648..a7ebc8bf5e1 100644
--- a/htdocs/core/modules/barcode/mod_barcode_product_standard.php
+++ b/htdocs/core/modules/barcode/mod_barcode_product_standard.php
@@ -38,7 +38,13 @@ class mod_barcode_product_standard extends ModeleNumRefBarCode
 	var $code_modifiable_invalide;		// Modified code if it is invalid
 	var $code_modifiable_null;			// Modified code if it is null
 	var $code_null;						// Optional code
-	var $version='dolibarr';    		// 'development', 'experimental', 'dolibarr'
+
+	/**
+     * Dolibarr version of the loaded document
+     * @public string
+     */
+	public $version = 'dolibarr';    		// 'development', 'experimental', 'dolibarr'
+
 	var $code_auto;                     // Automatic Numbering
 
 	var $searchcode; // Search string
diff --git a/htdocs/core/modules/cheque/mod_chequereceipt_mint.php b/htdocs/core/modules/cheque/mod_chequereceipt_mint.php
index b3b6fb96b66..ba617787cbe 100644
--- a/htdocs/core/modules/cheque/mod_chequereceipt_mint.php
+++ b/htdocs/core/modules/cheque/mod_chequereceipt_mint.php
@@ -29,13 +29,20 @@ require_once DOL_DOCUMENT_ROOT .'/core/modules/cheque/modules_chequereceipts.php
  */
 class mod_chequereceipt_mint extends ModeleNumRefChequeReceipts
 {
-	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
-	var $prefix='CHK';
+	/**
+     * Dolibarr version of the loaded document
+     * @public string
+     */
+	public $version = 'dolibarr';		// 'development', 'experimental', 'dolibarr'
+
+	public $prefix='CHK';
+
 	/**
 	 * @var string Error code (or message)
 	 */
 	public $error='';
-	var $name='Mint';
+
+	public $name='Mint';
 
 
     /**
diff --git a/htdocs/core/modules/cheque/mod_chequereceipt_thyme.php b/htdocs/core/modules/cheque/mod_chequereceipt_thyme.php
index caf063da7d4..867b7398a51 100644
--- a/htdocs/core/modules/cheque/mod_chequereceipt_thyme.php
+++ b/htdocs/core/modules/cheque/mod_chequereceipt_thyme.php
@@ -30,9 +30,14 @@ require_once DOL_DOCUMENT_ROOT .'/core/modules/cheque/modules_chequereceipts.php
  */
 class mod_chequereceipt_thyme extends ModeleNumRefChequeReceipts
 {
-	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
-	var $error = '';
-	var $name = 'Thyme';
+	/**
+     * Dolibarr version of the loaded document
+     * @public string
+     */
+	public $version = 'dolibarr';		// 'development', 'experimental', 'dolibarr'
+
+	public $error = '';
+	public $name = 'Thyme';
 
 
     /**
diff --git a/htdocs/core/modules/commande/mod_commande_marbre.php b/htdocs/core/modules/commande/mod_commande_marbre.php
index 8ff489cc5fa..bcd3b34df04 100644
--- a/htdocs/core/modules/commande/mod_commande_marbre.php
+++ b/htdocs/core/modules/commande/mod_commande_marbre.php
@@ -29,13 +29,20 @@ require_once DOL_DOCUMENT_ROOT .'/core/modules/commande/modules_commande.php';
  */
 class mod_commande_marbre extends ModeleNumRefCommandes
 {
-	var $version='dolibarr';		// 'development', 'experimental', 'dolibarr'
-	var $prefix='CO';
+	/**
+     * Dolibarr version of the loaded document
+     * @public string
+     */
+	public $version = 'dolibarr';		// 'development', 'experimental', 'dolibarr'
+
+	public $prefix='CO';
+
 	/**
 	 * @var string Error code (or message)
 	 */
 	public $error='';
-	var $nom='Marbre';
+
+	public $nom='Marbre';
 
 
     /**