diff --git a/content/docs/api/db/types/checkboxes/contents.lr b/content/docs/api/db/types/checkboxes/contents.lr
index 7ad005f7..51da9054 100644
--- a/content/docs/api/db/types/checkboxes/contents.lr
+++ b/content/docs/api/db/types/checkboxes/contents.lr
@@ -43,7 +43,7 @@ source = record.attachments.images
 
 ```html+jinja
 {% for image in this.attachments.images %}
-  {% if image.id in this.slideshow %}
+  {% if image._id in this.slideshow %}
     <img src="{{ image.thumbnail(500) }}" class="slide">
   {% endif %}
 {% endfor %}