diff --git a/htdocs/comm/propal/card.php b/htdocs/comm/propal/card.php
index af32f12c8e0..7de5c0e25ce 100644
--- a/htdocs/comm/propal/card.php
+++ b/htdocs/comm/propal/card.php
@@ -619,8 +619,7 @@ if (empty($reshook))
 			// prevent browser refresh from closing proposal several times
 			if ($object->statut == Propal::STATUS_VALIDATED)
 			{
-				$newprivatenote = dol_concatdesc($object->note_private, GETPOST('note_private','alpha'));
-				$result=$object->cloture($user, GETPOST('statut','int'), $newprivatenote);
+				$result=$object->cloture($user, GETPOST('statut','int'), GETPOST('note_private','none'));
 				if ($result < 0)
 				{
 					setEventMessages($object->error, $object->errors, 'errors');
@@ -1688,8 +1687,8 @@ if ($action == 'create')
 		//Form to close proposal (signed or not)
 		$formquestion = array(
 				array('type' => 'select','name' => 'statut','label' => $langs->trans("CloseAs"),'values' => array(2=>$object->labelstatut [2],3=>$object->labelstatut [3])),
-				//array('type' => 'other','name' => 'note_private', 'label' => $langs->trans("Note"),'value' => '<textarea cols="30" rows="' . ROWS_3 . '" wrap="soft" name="note_private" id="note_private">'.$object->note_private.'</textarea>'));
-				array('type' => 'text', 'name' => 'note_private', 'label' => $langs->trans("Note"),'value' => $object->note_private));
+				array('type' => 'text', 'name' => 'note_private', 'label' => $langs->trans("Note"),'value' => '')				// Field to complete private note (not replace)
+		);
 
 		if (! empty($conf->notification->enabled)) {
 			require_once DOL_DOCUMENT_ROOT . '/core/class/notify.class.php';
diff --git a/htdocs/comm/propal/class/api_proposals.class.php b/htdocs/comm/propal/class/api_proposals.class.php
index e13b9b71b90..97632a8b4a3 100644
--- a/htdocs/comm/propal/class/api_proposals.class.php
+++ b/htdocs/comm/propal/class/api_proposals.class.php
@@ -512,7 +512,7 @@ class Proposals extends DolibarrApi
 	 *
 	 * @param   int     $id             Commercial proposal ID
 	 * @param   int	    $status			Must be 2 (accepted) or 3 (refused)				{@min 2}{@max 3}
-	 * @param   string  $note_private   Add this mention to the private note
+	 * @param   string  $note_private   Add this mention at end of private note
 	 * @param   int     $notrigger      Disabled triggers
 	 *
 	 * @url POST    {id}/close
diff --git a/htdocs/comm/propal/class/propal.class.php b/htdocs/comm/propal/class/propal.class.php
index 61aa2a3ddb6..322deadfee3 100644
--- a/htdocs/comm/propal/class/propal.class.php
+++ b/htdocs/comm/propal/class/propal.class.php
@@ -2215,7 +2215,7 @@ class Propal extends CommonObject
 	 *
 	 *	@param      User	$user		Object user that close
 	 *	@param      int		$statut		Statut
-	 *	@param      string	$note		Comment
+	 *	@param      string	$note		Complete private note with this note
 	 *  @param		int		$notrigger	1=Does not execute triggers, 0=Execute triggers
 	 *	@return     int         		<0 if KO, >0 if OK
 	 */
@@ -2228,8 +2228,10 @@ class Propal extends CommonObject
 
 		$this->db->begin();
 
+		$newprivatenote = dol_concatdesc($this->note_private, $note);
+
 		$sql = "UPDATE ".MAIN_DB_PREFIX."propal";
-		$sql.= " SET fk_statut = ".$statut.", note_private = '".$this->db->escape($note)."', date_cloture='".$this->db->idate($now)."', fk_user_cloture=".$user->id;
+		$sql.= " SET fk_statut = ".$statut.", note_private = '".$this->db->escape($newprivatenote)."', date_cloture='".$this->db->idate($now)."', fk_user_cloture=".$user->id;
 		$sql.= " WHERE rowid = ".$this->id;
 
 		$resql=$this->db->query($sql);