diff --git a/metropolis/pkg/supervisor/supervisor_testhelpers.go b/metropolis/pkg/supervisor/supervisor_testhelpers.go
index 017c9f9..1a72ad8 100644
--- a/metropolis/pkg/supervisor/supervisor_testhelpers.go
+++ b/metropolis/pkg/supervisor/supervisor_testhelpers.go
@@ -57,7 +57,7 @@
 		verbose = true
 	}
 	if verbose {
-		logtree.PipeAllToStderr(t, lt)
+		logtree.PipeAllToTest(t, lt)
 	}
 
 	sup := New(ctx, func(ctx context.Context) error {