diff --git a/demos/_unit-test/late-output-error.php b/demos/_unit-test/late-output-error.php
index a9c4469087..dba08fa9f1 100644
--- a/demos/_unit-test/late-output-error.php
+++ b/demos/_unit-test/late-output-error.php
@@ -33,7 +33,7 @@
     if (ob_get_level() === 0) {
         ob_start();
     }
-    ob_start();
+//    ob_start();
     echo 'unmanaged output';
 });