diff --git a/bar.go b/bar.go
index 0c9b824..41b2487 100644
--- a/bar.go
+++ b/bar.go
@@ -58,6 +58,7 @@
 type extFunc func(in io.Reader, tw int, st *decor.Statistics) (out io.Reader, lines int)
 
 type bState struct {
+	baseF             Filler
 	filler            Filler
 	id                int
 	width             int
@@ -165,7 +166,7 @@
 		SetRefill(int64)
 	}
 	b.operateState <- func(s *bState) {
-		if f, ok := s.filler.(refiller); ok {
+		if f, ok := s.baseF.(refiller); ok {
 			f.SetRefill(amount)
 		}
 	}
diff --git a/bar_option.go b/bar_option.go
index 3f19527..ac45c02 100644
--- a/bar_option.go
+++ b/bar_option.go
@@ -80,7 +80,7 @@
 // BarClearOnComplete clears bar filler only, on complete event.
 func BarClearOnComplete() BarOption {
 	return func(s *bState) {
-		s.filler = makeClearOnCompleteFiller(s.filler)
+		s.filler = makeClearOnCompleteFiller(s.baseF)
 	}
 }
 
@@ -141,7 +141,7 @@
 		SetStyle(string)
 	}
 	return func(s *bState) {
-		if t, ok := s.filler.(styleSetter); ok {
+		if t, ok := s.baseF.(styleSetter); ok {
 			t.SetStyle(style)
 		}
 	}
@@ -161,7 +161,7 @@
 		SetReverse(bool)
 	}
 	return func(s *bState) {
-		if t, ok := s.filler.(revSetter); ok {
+		if t, ok := s.baseF.(revSetter); ok {
 			t.SetReverse(true)
 		}
 	}
@@ -191,7 +191,7 @@
 	cb func(interface{}),
 ) BarOption {
 	return func(s *bState) {
-		if t, ok := typeChecker(s.filler); ok {
+		if t, ok := typeChecker(s.baseF); ok {
 			cb(t)
 		}
 	}
diff --git a/progress.go b/progress.go
index db7d3e3..d6ed3f2 100644
--- a/progress.go
+++ b/progress.go
@@ -332,6 +332,7 @@
 func (s *pState) makeBarState(total int64, filler Filler, options ...BarOption) *bState {
 	bs := &bState{
 		total:    total,
+		baseF:    filler,
 		filler:   filler,
 		priority: s.idCount,
 		id:       s.idCount,