diff --git a/src/Gateways/PorticoConnector.ts b/src/Gateways/PorticoConnector.ts
index 4f2f4d6d..0d230578 100644
--- a/src/Gateways/PorticoConnector.ts
+++ b/src/Gateways/PorticoConnector.ts
@@ -1150,7 +1150,7 @@ export class PorticoConnector extends XmlGateway implements IPaymentGateway {
 
     if (acceptedCodes.indexOf(gatewayRspCode) === -1) {
       throw new GatewayError(
-        `Unexpected Gateway Response: ${gatewayRspCode} - ${gatewayRspText}`,
+        'Unexpected Gateway Response', gatewayRspCode, gatewayRspText
       );
     }