diff --git a/htdocs/compta/sociales/class/chargesociales.class.php b/htdocs/compta/sociales/class/chargesociales.class.php
index 44779b8b0de..6fbd0a23143 100644
--- a/htdocs/compta/sociales/class/chargesociales.class.php
+++ b/htdocs/compta/sociales/class/chargesociales.class.php
@@ -132,7 +132,7 @@ class ChargeSociales extends CommonObject
         $sql = "INSERT INTO ".MAIN_DB_PREFIX."chargesociales (fk_type, libelle, date_ech, periode, amount, entity)";
         $sql.= " VALUES (".$this->type.",'".$this->db->escape($this->lib)."',";
         $sql.= " '".$this->db->idate($this->date_ech)."','".$this->db->idate($this->periode)."',";
-        $sql.= " ".price2num($newamount)."',";
+        $sql.= " '".price2num($newamount)."',";
         $sql.= " ".$conf->entity;
         $sql.= ")";