diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index da5b620e204..d11023de8a8 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -3915,7 +3915,7 @@ class Facture extends CommonInvoice
 			//var_dump(debug_backtrace(false));exit;
 		}
 
-		global $mysoc, $conf, $langs;
+		global $mysoc, $langs;
 
 		dol_syslog(get_class($this)."::addline id=$this->id, pu_ht=$pu_ht, qty=$qty, txtva=$txtva, txlocaltax1=$txlocaltax1, txlocaltax2=$txlocaltax2, fk_product=$fk_product, remise_percent=$remise_percent, date_start=$date_start, date_end=$date_end, fk_code_ventilation=$fk_code_ventilation, info_bits=$info_bits, fk_remise_except=$fk_remise_except, price_base_type=$price_base_type, pu_ttc=$pu_ttc, type=$type, fk_unit=$fk_unit, desc=".dol_trunc($desc, 25), LOG_DEBUG);
 
@@ -3955,7 +3955,7 @@ class Facture extends CommonInvoice
 			}
 			if (!isset($situation_percent) || $situation_percent > 100 || (string) $situation_percent == '' || $situation_percent == null) {
 				// INVOICE_USE_SITUATION = 2 - Lines situation percent on new lines must be 0 (No cumulative)
-				if ($this->type == Facture::TYPE_SITUATION && getDolGlobalInt('INVOICE_USE_SITUATION') == 2 && (int) $situation_percent < 100) {
+				if ($this->isSituationInvoice() && getDolGlobalInt('INVOICE_USE_SITUATION') == 2) {
 					$situation_percent = 0;
 				} else {
 					$situation_percent = 100;