diff --git a/templates/themes/catalog/catalog.html b/templates/themes/catalog/catalog.html
index 493f47d1..62ca7147 100644
--- a/templates/themes/catalog/catalog.html
+++ b/templates/themes/catalog/catalog.html
@@ -51,7 +51,7 @@
{% else %}
+ id="img-{{ post.id }}" data-subject="{% if post.subject %}{{ post.subject|e }}{% endif %}" data-name="{{ post.name|e }}" data-muhdifference="{{ post.muhdifference }}" class="{{post.board}} thread-image" title="{{post.bump|date('%b %d %H:%M')}} {% if config.content_lazy_loading %}loading="lazy"{% endif %}">