diff --git a/core/tests/Drupal/Tests/Core/Discovery/TemplateDiscoveryTest.php b/core/tests/Drupal/Tests/Core/Discovery/TemplateDiscoveryTest.php
index d425cb2367..6c44c4190c 100644
--- a/core/tests/Drupal/Tests/Core/Discovery/TemplateDiscoveryTest.php
+++ b/core/tests/Drupal/Tests/Core/Discovery/TemplateDiscoveryTest.php
@@ -163,6 +163,7 @@ public function testBrokenYaml() {
  * Extends the TemplateDiscovery class for testing.
  */
 class TestTemplateDiscovery extends TemplateDiscovery {
+
   /**
    * {@inheritdoc}
    */