diff --git a/src/Service/InvoiceGenerator/ResqInvoiceGenerator.php b/src/Service/InvoiceGenerator/ResqInvoiceGenerator.php
index 56a7d12b..d3a30762 100644
--- a/src/Service/InvoiceGenerator/ResqInvoiceGenerator.php
+++ b/src/Service/InvoiceGenerator/ResqInvoiceGenerator.php
@@ -35,7 +35,7 @@ class ResqInvoiceGenerator implements InvoiceGeneratorInterface
     const WARRANTY_FEE          = 0;
     const OTHER_SERVICES_FEE    = 200;
     const COOLANT_FEE           = 1600;
-    const REFUEL_FEE_GAS        = 300; // for 4 liters
+    const REFUEL_FEE_GAS        = 320; // for 4 liters
     const REFUEL_FEE_DIESEL     = 320; // for 4 liters
 
     private $security;