diff --git a/xml/page_payment.xml b/xml/page_payment.xml
index b80d3d1c..a476e485 100644
--- a/xml/page_payment.xml
+++ b/xml/page_payment.xml
@@ -21,6 +21,8 @@
 
 	SAVELOG BoxID
 
+	Var ServiceCharge = 0
+
 	Var QRCODE1 = "A000000677010112"
     Var QRCODE2 = "010755600066301"
     Var QRCODE3 = "VDGN"
diff --git a/xml/page_payment_multi.xml b/xml/page_payment_multi.xml
index e19845bf..a5464a71 100644
--- a/xml/page_payment_multi.xml
+++ b/xml/page_payment_multi.xml
@@ -114,6 +114,8 @@
 	EndIf
 
 	Var ServiceAmountSum = PriceDrinkMulti
+
+	Var ServiceCharge = 0
 	
 
 	; On open