diff --git a/src/ledger/file.go b/src/ledger/file.go
index 50881cd..264d047 100644
--- a/src/ledger/file.go
+++ b/src/ledger/file.go
@@ -3,7 +3,6 @@ package ledger
 import (
 	"bufio"
 	"bytes"
-	"errors"
 	"fmt"
 	"io"
 	"io/fs"
@@ -56,7 +55,7 @@ func (files Files) TempSetLastNLines(n int, lines []string) error {
 		fmt.Fprintln(w, lines[i])
 	}
 
-	return errors.New(w.Name())
+	return os.Rename(w.Name(), p)
 }
 
 func peekLastNLines(w io.Writer, r *bufio.Reader, n int) ([]string, error) {