diff --git a/core/modules/system/lib/Drupal/system/Tests/Theme/TwigSettingsTest.php b/core/modules/system/lib/Drupal/system/Tests/Theme/TwigSettingsTest.php
index 003d61e..4fd4417 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Theme/TwigSettingsTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Theme/TwigSettingsTest.php
@@ -89,7 +89,7 @@ function testTwigCacheOverride() {
     $templates = drupal_find_theme_templates($cache, '.html.twig', drupal_get_path('theme', 'test_theme_twig'));
 
     // Get the template filename and the cache filename for
-    // theme_test_template_test.html.twig.
+    // theme_test.template_test.html.twig.
     $template_filename = $templates['theme_test_template_test']['path'] . '/' . $templates['theme_test_template_test']['template'] . '.html.twig';
     $cache_filename = drupal_container()->get('twig')->getCacheFilename($template_filename);