diff --git a/core/modules/book/src/Tests/BookBreadcrumbTest.php b/core/modules/book/src/Tests/BookBreadcrumbTest.php
index 58529ef..2c126aa 100644
--- a/core/modules/book/src/Tests/BookBreadcrumbTest.php
+++ b/core/modules/book/src/Tests/BookBreadcrumbTest.php
@@ -191,9 +191,6 @@ public function testBreadcrumbAccessUpdates() {
     $this->assertEqual(5, count($got_breadcrumb));
     $this->assertEqual($edit['title[0][value]'], end($got_breadcrumb));
     $config = $this->container->get('config.factory')->getEditable('book_breadcrumb_test.settings');
-    // Because the configuration isn't provided in config/install, save this
-    // twice to ensure the cache tag is invalidated.
-    $config->set('hide', TRUE)->save();
     $config->set('hide', TRUE)->save();
     $this->drupalGet($nodes[4]->toUrl());
     $links = $this->xpath('//nav[@class="breadcrumb"]/ol/li/a');