diff --git a/htdocs/don/class/don.class.php b/htdocs/don/class/don.class.php
index 2f720281b4f..0f3a1879638 100644
--- a/htdocs/don/class/don.class.php
+++ b/htdocs/don/class/don.class.php
@@ -390,7 +390,7 @@ class Don extends CommonObject
         $sql.= ", ".$conf->entity;
         $sql.= ", ".price2num($this->amount);
         $sql.= ", ".($this->modepaymentid?$this->modepaymentid:"null");
-        $sql.= ", '".$this->fk_soc."'";
+        $sql.= ", '".$this->db->escape($this->fk_soc)."'";
         $sql.= ", '".$this->db->escape($this->firstname)."'";
         $sql.= ", '".$this->db->escape($this->lastname)."'";
         $sql.= ", '".$this->db->escape($this->societe)."'";