diff --git a/bar.go b/bar.go
index 3b5cebd..6d40b0a 100644
--- a/bar.go
+++ b/bar.go
@@ -644,11 +644,11 @@
 	for i := 0; i < len(s.shutdownListeners); i++ {
 		switch d := s.shutdownListeners[i]; i {
 		case len(s.shutdownListeners) - 1:
-			d.Shutdown()
+			d.OnShutdown()
 		default:
 			wg.Add(1)
 			go func() {
-				d.Shutdown()
+				d.OnShutdown()
 				wg.Done()
 			}()
 		}
diff --git a/decor/decorator.go b/decor/decorator.go
index 90e1d6c..e60d37e 100644
--- a/decor/decorator.go
+++ b/decor/decorator.go
@@ -113,7 +113,7 @@
 // If decorator needs to be notified once upon bar shutdown event, so
 // this is the right interface to implement.
 type ShutdownListener interface {
-	Shutdown()
+	OnShutdown()
 }
 
 // Global convenience instances of WC with sync width bit set.