diff --git a/core/modules/config/src/Tests/ConfigEntityTest.php b/core/modules/config/src/Tests/ConfigEntityTest.php
index 18263b4..a0c857b 100644
--- a/core/modules/config/src/Tests/ConfigEntityTest.php
+++ b/core/modules/config/src/Tests/ConfigEntityTest.php
@@ -318,7 +318,7 @@ public function testCRUDUI() {
     $this->assertFalse(entity_load('config_test', '0'), 'Test entity deleted');
 
     // Create a configuration entity with a property that uses AJAX to show
-    // extra form elements. Test this scenario it in a non-JS case by using a
+    // extra form elements. Test this scenario in a non-JS case by using a
     // 'js-hidden' submit button.
     // @see \Drupal\Tests\config\FunctionalJavascript\ConfigEntityTest::testAjaxOnAddPage()
     $this->drupalGet('admin/structure/config_test/add');