diff --git a/core/modules/system/src/Tests/Menu/MenuRouterTest.php b/core/modules/system/src/Tests/Menu/MenuRouterTest.php
index c8ca38c..e035476 100644
--- a/core/modules/system/src/Tests/Menu/MenuRouterTest.php
+++ b/core/modules/system/src/Tests/Menu/MenuRouterTest.php
@@ -51,6 +51,7 @@ protected function setUp() {
   public function testMenuIntegration() {
     $this->doTestTitleMenuCallback();
     $this->doTestMenuOptionalPlaceholders();
+    $this->doTestMenuHierarchy();
     $this->doTestMenuOnRoute();
     $this->doTestMenuName();
     $this->doTestMenuLinksDiscoveredAlter();