diff --git a/assets/u/image/cards/opensource.jpg b/assets/u/image/cards/opensource.jpg
new file mode 100644
index 0000000..9bf7c57
Binary files /dev/null and b/assets/u/image/cards/opensource.jpg differ
diff --git a/assets/u/image/cards/placeholder.jpg b/assets/u/image/cards/placeholder.jpg
new file mode 100644
index 0000000..c5828f9
Binary files /dev/null and b/assets/u/image/cards/placeholder.jpg differ
diff --git a/assets/u/image/cards/placeholder.png b/assets/u/image/cards/placeholder.png
deleted file mode 100644
index 3f52f5c..0000000
Binary files a/assets/u/image/cards/placeholder.png and /dev/null differ
diff --git a/content/u/projects/opensource/contents.lr b/content/u/projects/opensource/contents.lr
index 68d218d..aff9437 100644
--- a/content/u/projects/opensource/contents.lr
+++ b/content/u/projects/opensource/contents.lr
@@ -2,6 +2,8 @@ title: Open Source
 ---
 subtitle: Open Source literally created ungleich
 ---
+image: /u/image/cards/opensource.jpg
+---
 content:
 
 ## History of Open Source at ungleich
diff --git a/templates/summary-page.html b/templates/summary-page.html
index 12e2634..aed0ef0 100644
--- a/templates/summary-page.html
+++ b/templates/summary-page.html
@@ -16,7 +16,7 @@
         <img class="card-img-top" src="{{ childpage.image }}"
              alt="{{ childpage.title }}">
         {% else %}
-        <img class="card-img-top" src="/u/image/cards/placeholder.png"
+        <img class="card-img-top" src="/u/image/cards/placeholder.jpg"
              alt="{{ childpage.title }}">
         {% endif %}
         </a>