Needed for: https://vanadium-review.googlesource.com/#/c/4910/
MultiPart: 2/2

Change-Id: I1880144dfc646364464fe455ee696c6f3822a4b1
diff --git a/tunnel/tunneld/tunneld_v23_test.go b/tunnel/tunneld/tunneld_v23_test.go
index 508fd84..2b8638a 100644
--- a/tunnel/tunneld/tunneld_v23_test.go
+++ b/tunnel/tunneld/tunneld_v23_test.go
@@ -55,7 +55,7 @@
 	}
 
 	// And again with a file redirection this time.
-	outDir := t.TempDir()
+	outDir := t.NewTempDir()
 	outPath := filepath.Join(outDir, "hello.txt")
 
 	// TODO(sjr): instead of using Output() here, we'd really rather do