diff --git a/htdocs/core/class/vcard.class.php b/htdocs/core/class/vcard.class.php
index 0e3f04fa0f5..9c03475453f 100644
--- a/htdocs/core/class/vcard.class.php
+++ b/htdocs/core/class/vcard.class.php
@@ -85,10 +85,19 @@ function dol_quoted_printable_encode($input, $line_max = 76)
  */
 class vCard
 {
+	/**
+	 * @var array array of properties
+	 */
 	public $properties;
+
+	/**
+	 * @var string filename
+	 */
 	public $filename;
 
-	//var $encoding="UTF-8";
+	/**
+	 * @var string encoding
+	 */
 	public $encoding = "ISO-8859-1;ENCODING=QUOTED-PRINTABLE";