diff --git a/core/modules/navigation/tests/src/FunctionalJavascript/NavigationBlockUiTest.php b/core/modules/navigation/tests/src/FunctionalJavascript/NavigationBlockUiTest.php
index e8befbbfcf2343cb7bc56bea629de69e40c60b6c..c0e0b9427facfca4fda8f02cd2faa1e2b82300e3 100644
--- a/core/modules/navigation/tests/src/FunctionalJavascript/NavigationBlockUiTest.php
+++ b/core/modules/navigation/tests/src/FunctionalJavascript/NavigationBlockUiTest.php
@@ -114,6 +114,7 @@ public function testNavigationBlockAdminUiPage(): void {
     $this->assertSession()->elementNotExists('css', 'form .block-navigation-shortcuts');
 
     // Add a new block.
+    $this->getSession()->getPage()->uncheckField('toggle_content_preview');
     $this->openAddBlockForm('Navigation Shortcuts');
 
     $page->fillField('settings[label]', 'New Shortcuts');