diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index 8505af85ce5..dcf43bcf0cb 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -3245,7 +3245,7 @@ class Facture extends CommonInvoice
 											$sortorder = 'ASC,ASC,ASC,ASC';
 										}
 
-										$resBatchList = $productbatch->findAllForProduct($productStatic->id, $idwarehouse, (!empty($conf->global->STOCK_ALLOW_NEGATIVE_TRANSFER) ? null : 0), $sortfield, $sortorder);
+										$resBatchList = $productbatch->findAllForProduct($productStatic->id, $idwarehouse, (getDolGlobalInt('STOCK_ALLOW_NEGATIVE_TRANSFER') ? null : 0), $sortfield, $sortorder);
 										if (!is_array($resBatchList)) {
 											$error++;
 											$this->error = $this->db->lasterror();
@@ -3288,7 +3288,7 @@ class Facture extends CommonInvoice
 											}
 
 											if (!$error && $product_qty_remain > 0) {
-												if ($conf->global->STOCK_ALLOW_NEGATIVE_TRANSFER) {
+												if (getDolGlobalInt('STOCK_ALLOW_NEGATIVE_TRANSFER')) {
 													// take in the first batch
 													$batch = $batchList[0];
 													$result = $mouvP->livraison($user, $productStatic->id, $idwarehouse, $product_qty_remain, $this->lines[$i]->subprice, $langs->trans('InvoiceValidatedInDolibarr', $num), '', '', '', $batch->batch);
diff --git a/htdocs/expedition/card.php b/htdocs/expedition/card.php
index a9fcea34440..97e846f3054 100644
--- a/htdocs/expedition/card.php
+++ b/htdocs/expedition/card.php
@@ -1268,7 +1268,7 @@ if ($action == 'create') {
 										print '<!-- Show warehouse selection -->';
 
 										$stockMin = false;
-										if (empty($conf->global->STOCK_ALLOW_NEGATIVE_TRANSFER)) {
+										if (!getDolGlobalInt('STOCK_ALLOW_NEGATIVE_TRANSFER')) {
 											$stockMin = 0;
 										}
 										print $formproduct->selectWarehouses($tmpentrepot_id, 'entl'.$indiceAsked, '', 1, 0, $line->fk_product, '', 1, 0, array(), 'minwidth200', '', 1, $stockMin, 'stock DESC, e.ref');
diff --git a/htdocs/product/stock/class/mouvementstock.class.php b/htdocs/product/stock/class/mouvementstock.class.php
index 2392962a500..6c491bfc6e0 100644
--- a/htdocs/product/stock/class/mouvementstock.class.php
+++ b/htdocs/product/stock/class/mouvementstock.class.php
@@ -391,7 +391,7 @@ class MouvementStock extends CommonObject
 
 		// Check if stock is enough when qty is < 0
 		// Note that qty should be > 0 with type 0 or 3, < 0 with type 1 or 2.
-		if ($movestock && $qty < 0 && empty($conf->global->STOCK_ALLOW_NEGATIVE_TRANSFER)) {
+		if ($movestock && $qty < 0 && !getDolGlobalInt('STOCK_ALLOW_NEGATIVE_TRANSFER')) {
 			if (isModEnabled('productbatch') && $product->hasbatch() && !$skip_batch) {
 				$foundforbatch = 0;
 				$qtyisnotenough = 0;