diff --git a/ledger/delta.go b/ledger/delta.go
index e062516..7d53c41 100644
--- a/ledger/delta.go
+++ b/ledger/delta.go
@@ -22,17 +22,17 @@ type Delta struct {
 func newDeltas(t *ledger.Transaction) []Delta {
 	result := make([]Delta, len(t.AccountChanges))
 	for i, a := range t.AccountChanges {
-		result[i] = newDelta(t.Date, a)
+		value, _ := a.Balance.Float64()
+		result[i] = newDelta(t.Date, a.Name, value)
 	}
 	return result
 }
 
-func newDelta(d time.Time, a ledger.Account) Delta {
-	value, _ := a.Balance.Float64()
+func newDelta(d time.Time, a string, v float64) Delta {
 	return Delta{
 		Date:     d,
-		Account:  a.Name,
-		Value:    value,
+		Account:  a,
+		Value:    v,
 		Currency: USD, // TODO
 	}
 }
diff --git a/ledger/delta_test.go b/ledger/delta_test.go
index 5804c0d..58accaa 100644
--- a/ledger/delta_test.go
+++ b/ledger/delta_test.go
@@ -3,9 +3,6 @@ package ledger
 import (
 	"testing"
 	"time"
-
-	"github.com/howeyc/ledger"
-	"github.com/howeyc/ledger/decimal"
 )
 
 func TestDelta(t *testing.T) {
@@ -13,11 +10,7 @@ func TestDelta(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	delta := newDelta(d, ledger.Account{
-		Name:    "name",
-		Balance: decimal.NewFromFloat(34.56),
-		Comment: "comment",
-	})
+	delta := newDelta(d, "name", 34.56)
 
 	if delta.Date != d {
 		t.Error(delta.Date)
@@ -34,11 +27,7 @@ func TestDelta(t *testing.T) {
 	t.Log(delta)
 
 	d2, _ := time.Parse("2006-01-02", "2099-09-08")
-	delta2 := newDelta(d2, ledger.Account{
-		Name:    "name",
-		Balance: decimal.NewFromFloat(11.11),
-		Comment: "comment",
-	})
+	delta2 := newDelta(d2, "name", 11.11)
 
 	combined := delta.Plus(delta2)
 	if combined.Date != d2 {
diff --git a/ledger/file.go b/ledger/file.go
index f8e4268..5793c07 100644
--- a/ledger/file.go
+++ b/ledger/file.go
@@ -1,6 +1,8 @@
 package ledger
 
 import (
+	"os"
+
 	"github.com/howeyc/ledger"
 )
 
@@ -30,5 +32,10 @@ func (file File) Deltas(like ...Like) ([]Delta, error) {
 }
 
 func (file File) transactions() ([]*ledger.Transaction, error) {
-	return ledger.ParseLedgerFile(string(file))
+	f, err := os.Open(string(file))
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	return ledger.ParseLedger(f)
 }