diff --git a/core/tests/bootstrap.php b/core/tests/bootstrap.php
index 56f7cd68a2477b7b8e359bf8a9d4b2b0b7131067..0d663410407d569f287db099b6a3730ccf9adf27 100644
--- a/core/tests/bootstrap.php
+++ b/core/tests/bootstrap.php
@@ -171,7 +171,7 @@ class_alias('\Drupal\Tests\DocumentElement', '\Behat\Mink\Element\DocumentElemen
   // DebugClassLoader, that occur before tests' setUp() methods are called.
   // We pass an instance of the PHPUnit error handler to redirect any error not
   // managed by our layer back to PHPUnit.
-  set_error_handler(new BootstrapErrorHandler(new PhpUnitErrorHandler()));
+  set_error_handler(new BootstrapErrorHandler(PhpUnitErrorHandler::instance()));
 
   // Enable the DebugClassLoader to get deprecations for methods' signature
   // changes.