diff --git a/_includes/thumbnail_podcast.html b/_includes/thumbnail_podcast.html
index 99e19a2..5e1a85d 100644
--- a/_includes/thumbnail_podcast.html
+++ b/_includes/thumbnail_podcast.html
@@ -5,7 +5,7 @@
         {% if episode.custom_thumbnail_name == null %}
         <img src="{{ site.img_url }}thumbnails/podcast/placeholder.png">
         {% else %}
-        <img src="{{ site.img_url }}thumbnails/podcast/{{ episode.custom_thumbnail_name }}.png">
+        <img src="{{ site.img_url }}thumbnails/podcast/{{ episode.custom_thumbnail_name }}.jpg">
         {% endif %}
         <span class="absolute text-white right-0 bottom-0 pr-3 pb-3" style="font-size: 3.1rem; font-weight: 800;" >#{{ episode.title | slice: 2, 2 }}</span>
       </div>