diff --git a/bar_option.go b/bar_option.go
index 8113532..66656d9 100644
--- a/bar_option.go
+++ b/bar_option.go
@@ -88,7 +88,7 @@
 	})
 }
 
-// BarFillerMiddleware provides a way to augment default BarFiller.
+// BarFillerMiddleware provides a way to augment the underlying BarFiller.
 func BarFillerMiddleware(middle func(BarFiller) BarFiller) BarOption {
 	return func(s *bState) {
 		s.middleware = middle