diff --git a/src/Gateways/PorticoConnector.php b/src/Gateways/PorticoConnector.php
index 178a334b..5bec9c4a 100644
--- a/src/Gateways/PorticoConnector.php
+++ b/src/Gateways/PorticoConnector.php
@@ -777,7 +777,7 @@ public function manageTransaction(ManagementBuilder $builder)
                             }
 
                             if (!empty($lineItem->totalAmount)) {
-                                $linetItemNode->appendChild($xml->createElement('LineItemTotalAmt', $lineItem->totalAmount));
+                                $linetItemNode->appendChild($xml->createElement('ItemTotalAmt', $lineItem->totalAmount));
                             }
 
                             // if (!empty($lineItem->somethingsome)) {