diff --git a/core/modules/views_ui/src/Tests/DisplayTest.php b/core/modules/views_ui/src/Tests/DisplayTest.php
index 2976120..7f5f125 100644
--- a/core/modules/views_ui/src/Tests/DisplayTest.php
+++ b/core/modules/views_ui/src/Tests/DisplayTest.php
@@ -163,9 +163,7 @@ public function testLinkDisplay() {
     $this->assertEqual($result[0], t('None'), 'Make sure that the link option summary shows "None" by default.');
 
     $this->drupalGet($link_display_path);
-    // We are looking for the None option which has a '' key, that's why there
-    // is no key appended in the ID.
-    $this->assertFieldChecked('edit-link-display-');
+    $this->assertFieldChecked('edit-link-display-0');
 
     // Test the default radio option on the link display form.
     $this->drupalPostForm($link_display_path, array('link_display' => 'page_1'), t('Apply'));