diff --git a/bar.go b/bar.go
index 30a3cea..3b5cebd 100644
--- a/bar.go
+++ b/bar.go
@@ -671,7 +671,7 @@
 
 func extractBaseDecorator(d decor.Decorator) decor.Decorator {
 	if d, ok := d.(decor.Wrapper); ok {
-		return extractBaseDecorator(d.Base())
+		return extractBaseDecorator(d.Unwrap())
 	}
 	return d
 }
diff --git a/decor/decorator.go b/decor/decorator.go
index a43a139..90e1d6c 100644
--- a/decor/decorator.go
+++ b/decor/decorator.go
@@ -93,7 +93,7 @@
 // it is necessary to implement this interface to retain functionality
 // of built-in Decorator.
 type Wrapper interface {
-	Base() Decorator
+	Unwrap() Decorator
 }
 
 // EwmaDecorator interface.
diff --git a/decor/merge.go b/decor/merge.go
index cc9a512..a30b785 100644
--- a/decor/merge.go
+++ b/decor/merge.go
@@ -63,7 +63,7 @@
 	return d.wc.Sync()
 }
 
-func (d *mergeDecorator) Base() Decorator {
+func (d *mergeDecorator) Unwrap() Decorator {
 	return d.Decorator
 }
 
diff --git a/decor/on_abort.go b/decor/on_abort.go
index f9a1197..e36a63c 100644
--- a/decor/on_abort.go
+++ b/decor/on_abort.go
@@ -35,6 +35,6 @@
 	return d.Decorator.Decor(s)
 }
 
-func (d *onAbortWrapper) Base() Decorator {
+func (d *onAbortWrapper) Unwrap() Decorator {
 	return d.Decorator
 }
diff --git a/decor/on_complete.go b/decor/on_complete.go
index 663ec36..837d067 100644
--- a/decor/on_complete.go
+++ b/decor/on_complete.go
@@ -34,6 +34,6 @@
 	return d.Decorator.Decor(s)
 }
 
-func (d *onCompleteWrapper) Base() Decorator {
+func (d *onCompleteWrapper) Unwrap() Decorator {
 	return d.Decorator
 }