diff --git a/src/Plugin/migrate/process/Merge.php b/src/Plugin/migrate/process/Merge.php
index 35da3ba477edae144a011c6c1403fa739d762279..463595e9d7b31c13bd6e7e4dc3a799d28ac1dff4 100644
--- a/src/Plugin/migrate/process/Merge.php
+++ b/src/Plugin/migrate/process/Merge.php
@@ -41,8 +41,8 @@ use Drupal\migrate\Row;
  *    paragraphs_field:
  *      plugin: merge
  *      source:
- *        - @temp_body
- *        - @temp_images
+ *        - '@temp_body'
+ *        - '@temp_images'
  *  destination:
  *    plugin: 'entity:node'
  */