diff --git a/progress_test.go b/progress_test.go
index 87446b4..08658be 100644
--- a/progress_test.go
+++ b/progress_test.go
@@ -21,6 +21,7 @@
 	shutdown := make(chan interface{})
 	ctx, cancel := context.WithCancel(context.Background())
 	p := mpb.NewWithContext(ctx,
+		mpb.WithOutput(io.Discard),
 		mpb.WithShutdownNotifier(shutdown),
 	)
 	_ = p.AddBar(0) // never complete bar