diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index a0013593390..98222fafc00 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -474,7 +474,7 @@ class Facture extends CommonInvoice
 		$sql.= ", ".($this->ref_int?"'".$this->db->escape($this->ref_int)."'":"null");
 		$sql.= ", ".($this->fk_account>0?$this->fk_account:'NULL');
 		$sql.= ", ".($this->module_source ? "'".$this->db->escape($this->module_source)."'" : "null");
-		$sql.= ", ".($this->pos_source ? "'".$this->db->escape($this->pos_source)."'" : "null");
+		$sql.= ", ".($this->pos_source != '' ? "'".$this->db->escape($this->pos_source)."'" : "null");
 		$sql.= ", ".($this->fk_fac_rec_source?"'".$this->db->escape($this->fk_fac_rec_source)."'":"null");
 		$sql.= ", ".($this->fk_facture_source?"'".$this->db->escape($this->fk_facture_source)."'":"null");
 		$sql.= ", ".($user->id > 0 ? "'".$user->id."'":"null");
diff --git a/htdocs/takepos/invoice.php b/htdocs/takepos/invoice.php
index 165a128b9e5..cdfe47a756f 100644
--- a/htdocs/takepos/invoice.php
+++ b/htdocs/takepos/invoice.php
@@ -77,16 +77,17 @@ if ($action == 'valid' && $user->rights->facture->creer){
 
 if (($action=="addline" || $action=="freezone") and $placeid==0)
 {
+	// $place is id of POS, $placeid is id of invoice
 	if ($placeid==0) {
 		$invoice = new Facture($db);
 		$invoice->socid=$conf->global->CASHDESK_ID_THIRDPARTY;
 		$invoice->date=dol_now();
 		$invoice->ref="(PROV-POS)";
 		$invoice->module_source = 'takepos';
-		$invoice->pos_source = (string) $place;
+		$invoice->pos_source = (string) (empty($place)?'0':$place);
 
 		$placeid=$invoice->create($user);
-		$sql="UPDATE ".MAIN_DB_PREFIX."facture set facnumber='(PROV-POS-".$placeid.")' where rowid=".$placeid;
+		$sql="UPDATE ".MAIN_DB_PREFIX."facture set facnumber='(PROV-POS-".$place.")' where rowid=".$placeid;
 		$db->query($sql);
 	}
 }