diff --git a/core/modules/system/tests/src/Kernel/Scripts/DbDumpCommandTest.php b/core/modules/system/tests/src/Kernel/Scripts/DbDumpCommandTest.php
index c0ce87c..118ea8b 100644
--- a/core/modules/system/tests/src/Kernel/Scripts/DbDumpCommandTest.php
+++ b/core/modules/system/tests/src/Kernel/Scripts/DbDumpCommandTest.php
@@ -35,7 +35,8 @@ protected function setUp() {
       $this->markTestSkipped("Skipping test since the DbDumpCommand is currently only compatible with MySQL");
     }
 
-    $this->installSchema('system', 'router');
+    // Rebuild the router to ensure a routing table.
+    \Drupal::service('router.builder')->rebuild();
 
     /** @var \Drupal\Core\Database\Connection $connection */
     $connection = $this->container->get('database');