diff --git a/core/modules/config/tests/config_test/lib/Drupal/config_test/ConfigTestDeleteForm.php b/core/modules/config/tests/config_test/lib/Drupal/config_test/ConfigTestDeleteForm.php
index 15f2198..6675ada 100644
--- a/core/modules/config/tests/config_test/lib/Drupal/config_test/ConfigTestDeleteForm.php
+++ b/core/modules/config/tests/config_test/lib/Drupal/config_test/ConfigTestDeleteForm.php
@@ -67,7 +67,7 @@ public function buildForm(array $form, array &$form_state, ConfigTestInterface $
    */
   public function submitForm(array &$form, array &$form_state) {
     $this->configTest->delete();
-    drupal_set_message(String::format('%label configuration has been deleted.', array('%label' => $this->configTest->label()));
+    drupal_set_message(String::format('%label configuration has been deleted.', array('%label' => $this->configTest->label())));
     $form_state['redirect'] = 'admin/structure/config_test';
   }