diff --git a/_examples/complex/main.go b/_examples/complex/main.go
index 8268019..0a535cb 100644
--- a/_examples/complex/main.go
+++ b/_examples/complex/main.go
@@ -52,7 +52,7 @@
 				mpb.PrependDecorators(
 					decor.Name(task, decor.WC{W: len(task) + 1, C: decor.DidentRight}),
 					decor.OnComplete(decor.Name(job, decor.WCSyncSpaceR), "done!"),
-					decor.OnComplete(decor.EwmaETA(decor.ET_STYLE_MMSS, 0.0, decor.WCSyncWidth), "")),
+					decor.OnComplete(decor.EwmaETA(decor.ET_STYLE_MMSS, 0, decor.WCSyncWidth), "")),
 				mpb.AppendDecorators(
 					decor.OnComplete(decor.Percentage(decor.WC{W: 5}), ""),
 				),
diff --git a/decor/eta.go b/decor/eta.go
index 5f39df5..5c6a50a 100644
--- a/decor/eta.go
+++ b/decor/eta.go
@@ -28,7 +28,7 @@
 // work correctly. This decorator is a wrapper of MovingAverageETA.
 func EwmaETA(style TimeStyle, age float64, wcc ...WC) Decorator {
 	var average MovingAverage
-	if age == 0.0 {
+	if age == 0 {
 		average = ewma.NewMovingAverage()
 	} else {
 		average = ewma.NewMovingAverage(age)
diff --git a/decor/speed.go b/decor/speed.go
index f88481e..5021fd5 100644
--- a/decor/speed.go
+++ b/decor/speed.go
@@ -24,7 +24,7 @@
 // work correctly. This decorator is a wrapper of MovingAverageSpeed.
 func EwmaSpeed(unit int, format string, age float64, wcc ...WC) Decorator {
 	var average MovingAverage
-	if age == 0.0 {
+	if age == 0 {
 		average = ewma.NewMovingAverage()
 	} else {
 		average = ewma.NewMovingAverage(age)