diff --git a/app/templates/post/_post_teaser_masonry.html b/app/templates/post/_post_teaser_masonry.html
index 1b102d34..7b0d9ddb 100644
--- a/app/templates/post/_post_teaser_masonry.html
+++ b/app/templates/post/_post_teaser_masonry.html
@@ -13,17 +13,17 @@
             <div class="masonry_thumb" title="{{ post.title }}">
                 {% if post.type == POST_TYPE_LINK %}
                     {% if post.image.medium_url() %}
-                        <a href="{{ post.url }}" rel="nofollow ugc" target="_blank" data-fslightbox aria-label="{{ _('View image') }}"><img src="{{ post.image.medium_url() }}"
+                        <a href="{{ post.url }}" rel="nofollow ugc" target="_blank" data-fslightbox data-type="image"  aria-label="{{ _('View image') }}"><img src="{{ post.image.medium_url() }}"
                            alt="{{ post.image.alt_text if post.image.alt_text else '' }}" loading="lazy" width="{{ post.image.width }}" height="{{ post.image.height }}" /></a>
                     {% elif post.image.source_url %}
-                        <a href="{{ post.url }}" rel="nofollow ugc" target="_blank" data-fslightbox aria-label="{{ _('View image') }}"><img src="{{ post.image.source_url }}"
+                        <a href="{{ post.url }}" rel="nofollow ugc" target="_blank" data-fslightbox data-type="image"  aria-label="{{ _('View image') }}"><img src="{{ post.image.source_url }}"
                            alt="{{ post.title }}" loading="lazy" /></a>
                     {% else %}
-                        <a href="{{ post.url }}" rel="nofollow ugc" target="_blank" data-fslightbox aria-label="{{ _('View image') }}"><img src="{{ post.url }}"
+                        <a href="{{ post.url }}" rel="nofollow ugc" target="_blank" data-fslightbox data-type="image" aria-label="{{ _('View image') }}"><img src="{{ post.url }}"
                            alt="{{ post.title }}" loading="{{ 'lazy' if low_bandwidth else 'eager' }}" /></a>
                     {% endif %}
                 {% elif post.type == POST_TYPE_IMAGE %}
-                        <a href="{{ post.image.view_url() }}" rel="nofollow ugc" data-fslightbox target="_blank"><img src="{{ post.image.medium_url() }}"
+                        <a href="{{ post.image.view_url() }}" rel="nofollow ugc" data-fslightbox data-type="image"  target="_blank"><img src="{{ post.image.medium_url() }}"
                         alt="{{ post.image.alt_text if post.image.alt_text else '' }}" loading="lazy" width="{{ post.image.width }}" height="{{ post.image.height }}" /></a>
                 {% else %}
                     <a href="{{ url_for('activitypub.post_ap', post_id=post.id) }}"><img src="{{ post.image.thumbnail_url() }}"