diff --git a/core/modules/system/tests/modules/test_page_test/lib/Drupal/test_page_test/Controller/Test.php b/core/modules/system/tests/modules/test_page_test/lib/Drupal/test_page_test/Controller/Test.php
index 9263dd5..adddea4 100644
--- a/core/modules/system/tests/modules/test_page_test/lib/Drupal/test_page_test/Controller/Test.php
+++ b/core/modules/system/tests/modules/test_page_test/lib/Drupal/test_page_test/Controller/Test.php
@@ -23,7 +23,7 @@ class Test {
   public function renderTitle() {
     $build = array();
     $build['#markup'] = t('Hello Drupal');
-    $build['#Foo'] = t('Foo');
+    $build['#title'] = t('Foo');
 
     return $build;
   }