diff --git a/core/tests/Drupal/Tests/Core/Site/SettingsTest.php b/core/tests/Drupal/Tests/Core/Site/SettingsTest.php
index 3e9c323..59ec7d2 100644
--- a/core/tests/Drupal/Tests/Core/Site/SettingsTest.php
+++ b/core/tests/Drupal/Tests/Core/Site/SettingsTest.php
@@ -112,7 +112,7 @@ public function providerTestGetHashSaltEmpty() {
    *
    * @covers ::__sleep
    *
-   * @expectedException \BadMethodCallException
+   * @expectedException \LogicException
    */
   public function testSerialize() {
     serialize(new Settings([]));