diff --git a/core/modules/system/tests/modules/ajax_test/src/Controller/AjaxTestController.php b/core/modules/system/tests/modules/ajax_test/src/Controller/AjaxTestController.php
index b815be3..b618f0a 100644
--- a/core/modules/system/tests/modules/ajax_test/src/Controller/AjaxTestController.php
+++ b/core/modules/system/tests/modules/ajax_test/src/Controller/AjaxTestController.php
@@ -201,9 +201,9 @@ public function dialog() {
             'data-dialog-type' => 'modal',
             'data-dialog-options' => json_encode([
               'width' => 400,
-            ])
+            ]),
           ],
-        ]
+        ],
       ),
     );
 
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxThemeTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxThemeTest.php
index 819c430..ae61c42 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxThemeTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxThemeTest.php
@@ -32,7 +32,7 @@ public function testAjaxWithAdminRoute() {
     $assert = $this->assertSession();
     $assert->pageTextContains('Current theme: seven');
 
-    // Now click the modal, which should use also use the admin theme.
+    // Now click the modal, which should also use the admin theme.
     $this->drupalGet('ajax-test/dialog');
     $assert->pageTextNotContains('Current theme: stable');
     $this->clickLink('Link 8 (ajax)');