diff --git a/bar.go b/bar.go
index 03d7a9a..fea6f97 100644
--- a/bar.go
+++ b/bar.go
@@ -71,7 +71,7 @@
 		refill             *refill
 		bufP, bufB, bufA   *bytes.Buffer
 		panicMsg           string
-		newLineExtendFn    func(bool, io.Writer)
+		newLineExtendFn    func(io.Writer, bool)
 
 		// following options are assigned to the *Bar
 		priority   int
@@ -305,7 +305,7 @@
 		r := s.draw(tw, pSyncer, aSyncer)
 		if s.newLineExtendFn != nil {
 			b.bufNL.Reset()
-			s.newLineExtendFn(s.completeFlushed, b.bufNL)
+			s.newLineExtendFn(b.bufNL, s.completeFlushed)
 			r = io.MultiReader(r, b.bufNL)
 		}
 		b.frameReaderCh <- &frameReader{
@@ -320,7 +320,7 @@
 		r := s.draw(tw, pSyncer, aSyncer)
 		if s.newLineExtendFn != nil {
 			b.bufNL.Reset()
-			s.newLineExtendFn(s.completeFlushed, b.bufNL)
+			s.newLineExtendFn(b.bufNL, s.completeFlushed)
 			r = io.MultiReader(r, b.bufNL)
 		}
 		b.frameReaderCh <- &frameReader{Reader: r}
diff --git a/bar_option.go b/bar_option.go
index b64ed0c..fea197d 100644
--- a/bar_option.go
+++ b/bar_option.go
@@ -105,7 +105,7 @@
 
 // BarNewLineExtend takes user defined efn, which is called each render cycle.
 // Any write to provided writer w of efn, will appear on new line of respective bar.
-func BarNewLineExtend(efn func(completed bool, w io.Writer)) BarOption {
+func BarNewLineExtend(efn func(w io.Writer, completed bool)) BarOption {
 	return func(s *bState) {
 		s.newLineExtendFn = efn
 	}
diff --git a/examples/barNewLineExtend/main.go b/examples/barNewLineExtend/main.go
index b9f9f29..6bb1387 100644
--- a/examples/barNewLineExtend/main.go
+++ b/examples/barNewLineExtend/main.go
@@ -23,7 +23,7 @@
 
 	for i := 0; i < numBars; i++ {
 		name := fmt.Sprintf("Bar#%d:", i)
-		efn := func(completed bool, w io.Writer) {
+		efn := func(w io.Writer, completed bool) {
 			if completed {
 				io.WriteString(w, name+" is completed!\n")
 			}