diff --git a/core/modules/block/custom_block/lib/Drupal/custom_block/Form/CustomBlockDeleteForm.php b/core/modules/block/custom_block/lib/Drupal/custom_block/Form/CustomBlockDeleteForm.php
index 0e0d35f..1dc905c 100644
--- a/core/modules/block/custom_block/lib/Drupal/custom_block/Form/CustomBlockDeleteForm.php
+++ b/core/modules/block/custom_block/lib/Drupal/custom_block/Form/CustomBlockDeleteForm.php
@@ -11,7 +11,7 @@
 use Drupal\custom_block\Plugin\Core\Entity\CustomBlock;
 
 /**
- * Provides a deletion confirmation form for the block content entity form.
+ * Provides a confirmation form for deleting a custom block entity.
  */
 class CustomBlockDeleteForm extends ConfirmFormBase {
 
@@ -33,7 +33,7 @@ public function getFormID() {
    * {@inheritdoc}
    */
   protected function getQuestion() {
-    return t('Are you sure you want to delete %name', array('%name' => $this->block->label()));
+    return t('Are you sure you want to delete %name?', array('%name' => $this->block->label()));
   }
 
   /**