diff --git a/engine/balances.go b/engine/balances.go
index c147bdcd5..defef366b 100644
--- a/engine/balances.go
+++ b/engine/balances.go
@@ -818,12 +818,12 @@ func (f ValueFactor) GetValue(tor string) float64 {
 
 // BalanceSummary represents compressed information about a balance
 type BalanceSummary struct {
-	UUID         string // Balance UUID
-	ID           string // Balance ID  if not defined
-	Type         string // *voice, *data, etc
-	InitialValue float64
-	Value        float64
-	Disabled     bool
+	UUID     string  // Balance UUID
+	ID       string  // Balance ID  if not defined
+	Type     string  // *voice, *data, etc
+	Initial  float64 // initial value before the debit operation
+	Value    float64
+	Disabled bool
 }
 
 // BalanceSummaries is a list of BalanceSummaries
diff --git a/engine/calldesc.go b/engine/calldesc.go
index 202b884fd..6714ab37c 100644
--- a/engine/calldesc.go
+++ b/engine/calldesc.go
@@ -1008,7 +1008,7 @@ func (cd *CallDescriptor) AccountSummary(initialAcnt *AccountSummary) *AccountSu
 	for _, initialBal := range initialAcnt.BalanceSummaries {
 		for _, currentBal := range acntSummary.BalanceSummaries {
 			if currentBal.UUID == initialBal.UUID {
-				currentBal.InitialValue = initialBal.Value
+				currentBal.Initial = initialBal.Value
 				break
 			}
 		}
diff --git a/engine/eventcost_test.go b/engine/eventcost_test.go
index 83cb185db..58af17358 100644
--- a/engine/eventcost_test.go
+++ b/engine/eventcost_test.go
@@ -3295,7 +3295,7 @@ func TestEventCostString(t *testing.T) {
 			},
 		},
 	}
-	eOut = `{"CGRID":"","RunID":"","StartTime":"0001-01-01T00:00:00Z","Usage":null,"Cost":null,"Charges":null,"AccountSummary":{"Tenant":"","ID":"","BalanceSummaries":[{"UUID":"","ID":"ID","Type":"","InitialValue":0,"Value":0,"Disabled":false}],"AllowNegative":false,"Disabled":false},"Rating":null,"Accounting":null,"RatingFilters":null,"Rates":null,"Timings":null}`
+	eOut = `{"CGRID":"","RunID":"","StartTime":"0001-01-01T00:00:00Z","Usage":null,"Cost":null,"Charges":null,"AccountSummary":{"Tenant":"","ID":"","BalanceSummaries":[{"UUID":"","ID":"ID","Type":"","Initial":0,"Value":0,"Disabled":false}],"AllowNegative":false,"Disabled":false},"Rating":null,"Accounting":null,"RatingFilters":null,"Rates":null,"Timings":null}`
 	if rcv := eventCost.String(); !reflect.DeepEqual(eOut, rcv) {
 		t.Errorf("Expecting: %+v, received: %+v", eOut, rcv)
 	}