diff --git a/core/modules/book/tests/src/FunctionalJavascript/BookJavascriptTest.php b/core/modules/book/tests/src/FunctionalJavascript/BookJavascriptTest.php
index 1af143c..2f53919 100644
--- a/core/modules/book/tests/src/FunctionalJavascript/BookJavascriptTest.php
+++ b/core/modules/book/tests/src/FunctionalJavascript/BookJavascriptTest.php
@@ -3,7 +3,6 @@
 namespace Drupal\Tests\book\FunctionalJavascript;
 
 use Behat\Mink\Exception\ExpectationException;
-use Drupal\Component\Render\FormattableMarkup;
 use Drupal\FunctionalJavascriptTests\JavascriptTestBase;
 use Drupal\node\Entity\Node;
 
@@ -101,7 +100,7 @@ public function testBookOrdering() {
     $this->assertFalse($weight_select2->isVisible());
 
     $this->submitForm([], 'Save book pages');
-    $this->assertSession()->pageTextContains(new FormattableMarkup('Updated book @book.', ['@book' => $book->getTitle()]));
+    $this->assertSession()->pageTextContains("Updated book {$book->getTitle()}.");
 
     // Check again that '2nd page' is on top after form submit.
     $this->assertOrderInPage(['2nd page', '1st page']);