diff --git a/htdocs/don/class/don.class.php b/htdocs/don/class/don.class.php
index 70fabfcdc29..fc95009846b 100644
--- a/htdocs/don/class/don.class.php
+++ b/htdocs/don/class/don.class.php
@@ -6,7 +6,7 @@
  * Copyright (C) 2015-2017 Alexandre Spangaro   <aspangaro@open-dsi.fr>
  * Copyright (C) 2016      Juanjo Menent        <jmenent@2byte.es>
  * Copyright (C) 2019      Thibault FOUCART     <support@ptibogxiv.net>
- * Copyright (C) 2019       Frédéric France         <frederic.france@netlogic.fr>
+ * Copyright (C) 2019      Frédéric France      <frederic.france@netlogic.fr>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -62,7 +62,15 @@ class Don extends CommonObject
 	 */
 	public $picto = 'generic';
 
+	/**
+	 * @var string Date of the donation
+	 */
     public $date;
+
+    /**
+     * amount of donation
+     * @var double
+     */
     public $amount;
 
     /**
@@ -133,7 +141,7 @@ class Don extends CommonObject
 
 
     /**
-     * 	Retourne le libelle du statut d'un don (brouillon, validee, abandonnee, payee)
+     * 	Returns the donation status label (draft, valid, abandoned, paid)
      *
      *  @param	int		$mode       0=libelle long, 1=libelle court, 2=Picto + Libelle court, 3=Picto, 4=Picto + Libelle long
      *  @return string        		Libelle
@@ -145,7 +153,7 @@ class Don extends CommonObject
 
     // phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
     /**
-     *  Renvoi le libelle d'un statut donne
+     *  Return the label of a given status
      *
      *  @param	int		$statut        	Id statut
      *  @param  int		$mode          	0=libelle long, 1=libelle court, 2=Picto + Libelle court, 3=Picto, 4=Picto + Libelle long, 5=Libelle court + Picto
diff --git a/htdocs/don/class/donstats.class.php b/htdocs/don/class/donstats.class.php
index dc12f5a1d68..607d6555337 100644
--- a/htdocs/don/class/donstats.class.php
+++ b/htdocs/don/class/donstats.class.php
@@ -19,7 +19,7 @@
  */
 
 /**
- *  \file       htdocs/don/class/dontats.class.php
+ *  \file       htdocs/don/class/donstats.class.php
  *  \ingroup    donations
  *  \brief      File of class to manage donations statistics
  */
@@ -39,11 +39,22 @@ class DonationStats extends Stats
 	 */
 	public $table_element;
 
-	public  $socid;
+	public $socid;
     public $userid;
 
+    /**
+     * @var string FROM
+     */
     public $from;
+
+    /**
+     * @var string field
+     */
 	public $field;
+
+	/**
+	 * @var string WHERE
+	 */
     public $where;