diff --git a/core/modules/system/src/Tests/Update/LocalActionsAndTasksConvertedIntoBlocksUpdateTest.php b/core/modules/system/src/Tests/Update/LocalActionsAndTasksConvertedIntoBlocksUpdateTest.php
index 6da5115..8b4e3de 100644
--- a/core/modules/system/src/Tests/Update/LocalActionsAndTasksConvertedIntoBlocksUpdateTest.php
+++ b/core/modules/system/src/Tests/Update/LocalActionsAndTasksConvertedIntoBlocksUpdateTest.php
@@ -66,7 +66,7 @@ public function testUpdateHookN() {
 
     /** @var \Drupal\Core\Config\StorageInterface $config_storage */
     $config_storage = \Drupal::service('config.storage');
-    $this->assertTrue($config_storage->exists('block.block.test_theme_tabs'), 'Local task block has been created for the custom theme.');
+    $this->assertTrue($config_storage->exists('block.block.test_theme_local_tasks'), 'Local task block has been created for the custom theme.');
   }
 
 }