diff --git a/htdocs/societe/class/societe.class.php b/htdocs/societe/class/societe.class.php
index 46b80e7f77e..defcc71a3e5 100644
--- a/htdocs/societe/class/societe.class.php
+++ b/htdocs/societe/class/societe.class.php
@@ -4396,12 +4396,8 @@ class Societe extends CommonObject
 		 $alreadypayed=price2num($paiement + $creditnotes + $deposits,'MT');
 		 $remaintopay=price2num($invoice->total_ttc - $paiement - $creditnotes - $deposits,'MT');
 		 */
-		if ($mode == 'supplier') {
-			$sql = "SELECT rowid, total_ht as total_ht, total_ttc, paye, type, fk_statut as status, close_code FROM ".MAIN_DB_PREFIX.$table." as f";
-		} else {
-			$sql = "SELECT rowid, total as total_ht, total_ttc, paye, fk_statut as status, close_code FROM ".MAIN_DB_PREFIX.$table." as f";
-		}
-		$sql .= " WHERE fk_soc = ".$this->id;
+		$sql = "SELECT rowid, total_ht, total_ttc, paye, type, fk_statut as status, close_code FROM ".MAIN_DB_PREFIX.$table." as f";
+		$sql .= " WHERE fk_soc = ".((int) $this->id);
 		if (!empty($late)) {
 			$sql .= " AND date_lim_reglement < '".$this->db->idate(dol_now())."'";
 		}
@@ -4453,6 +4449,7 @@ class Societe extends CommonObject
 			}
 			return array('opened'=>$outstandingOpened, 'total_ht'=>$outstandingTotal, 'total_ttc'=>$outstandingTotalIncTax); // 'opened' is 'incl taxes'
 		} else {
+			dol_syslog("Sql error ".$this->db->lasterror, LOG_ERR);
 			return array();
 		}
 	}
diff --git a/test/phpunit/SocieteTest.php b/test/phpunit/SocieteTest.php
index 177458fb621..9a4f58540e9 100755
--- a/test/phpunit/SocieteTest.php
+++ b/test/phpunit/SocieteTest.php
@@ -387,6 +387,35 @@ class SocieteTest extends PHPUnit\Framework\TestCase
 	 * @depends testSocieteOther
 	 * The depends says test is run only if previous is ok
 	 */
+	public function testGetOutstandingBills($id)
+	{
+		global $conf,$user,$langs,$db;
+		$conf=$this->savconf;
+		$user=$this->savuser;
+		$langs=$this->savlangs;
+		$db=$this->savdb;
+
+		$localobject=new Societe($this->savdb);
+		$localobject->fetch($id);
+
+		$result=$localobject->getOutstandingBills();
+
+		print __METHOD__." id=".$id." result=".var_export($result, true)."\n";
+		$this->assertLessThan($result, 0);
+
+		return $id;
+	}
+
+
+	/**
+	 * testSocieteDelete
+	 *
+	 * @param   int     $id     Id of company
+	 * @return  int
+	 *
+	 * @depends testGetOutstandingBills
+	 * The depends says test is run only if previous is ok
+	 */
 	public function testSocieteDelete($id)
 	{
 		global $conf,$user,$langs,$db;