diff --git a/core/modules/config/src/Form/ConfigSync.php b/core/modules/config/src/Form/ConfigSync.php
index 19c1246..c91ed5c 100644
--- a/core/modules/config/src/Form/ConfigSync.php
+++ b/core/modules/config/src/Form/ConfigSync.php
@@ -222,7 +222,7 @@ public function buildForm(array $form, FormStateInterface $form_state) {
           '#items' => $change_list,
         );
         $change_list_html = $this->renderer->renderPlain($change_list_render);
-        drupal_set_message($this->t('The following items in your active configuration have changes since the last import that may be lost on the next import. !changes', array('!changes' => $change_list_html)), 'warning');
+        drupal_set_message($this->t('The following items in your active configuration have changes since the last import that may be lost on the next import. @changes', array('@changes' => $change_list_html)), 'warning');
       }
     }
 
@@ -237,7 +237,7 @@ public function buildForm(array $form, FormStateInterface $form_state) {
         $form[$collection]['collection_heading'] = array(
           '#type' => 'html_tag',
           '#tag' => 'h2',
-          '#value' => $this->t('!collection configuration collection', array('!collection' => $collection)),
+          '#value' => $this->t('@collection configuration collection', array('@collection' => $collection)),
         );
       }
       foreach ($storage_comparer->getChangelist(NULL, $collection) as $config_change_type => $config_names) {