diff --git a/bar_filler.go b/bar_filler.go
index 0c5da9d..c559310 100644
--- a/bar_filler.go
+++ b/bar_filler.go
@@ -43,6 +43,7 @@
 }
 
 // NewBarFiller constructs a BarFiller from provided BarFillerBuilder.
+// Deprecated. Prefer using `*Progress.New(...)` directly.
 func NewBarFiller(b BarFillerBuilder) BarFiller {
 	return b.Build()
 }