diff --git a/internal/log/default.go b/internal/log/default.go
index e673ca9..a884152 100644
--- a/internal/log/default.go
+++ b/internal/log/default.go
@@ -27,6 +27,8 @@ func (l *logHandler) Enabled(ctx context.Context, level slog.Level) bool {
 
 // Handle implements slog.Handler.
 func (l *logHandler) Handle(ctx context.Context, rec slog.Record) error {
+	rec.AddAttrs(slog.String("service_name", "spend-sparrow"))
+
 	if err := l.console.Handle(ctx, rec); err != nil {
 		return err
 	}