diff --git a/layouts/_default/photosummary.html b/layouts/_default/photosummary.html
index bad0733..a5510d3 100644
--- a/layouts/_default/photosummary.html
+++ b/layouts/_default/photosummary.html
@@ -1,6 +1,6 @@
 <article class="h-entry border-bottom">
     {{ range .Params.images }}
-    <p><a href="{{ . | safeURL }}"><img src="{{ . | safeURL }}"></a></p>
+    <p><a href="{{ . | safeURL }}"><img src="{{ . | safeURL }}" loading="lazy"></a></p>
     {{ end }}
     <p><a class="u-url" href="{{ .RelPermalink }}">{{ T "read_more" }}</a></p>
 </article>
\ No newline at end of file