diff --git a/website/templates/snippets/display_video_snippet.html b/website/templates/snippets/display_video_snippet.html
index 07f084af..c0b76458 100644
--- a/website/templates/snippets/display_video_snippet.html
+++ b/website/templates/snippets/display_video_snippet.html
@@ -47,8 +47,7 @@
             src="{{ video.get_embed }}" 
             title="Video: {{ video.title }}"
             frameborder="0" 
-            allow="autoplay; fullscreen" 
-            allowfullscreen
+            allow="autoplay; fullscreen"
             loading="lazy">
     </iframe>
   </div>
diff --git a/website/templates/website/project.html b/website/templates/website/project.html
index ed06b75d..f30e2365 100644
--- a/website/templates/website/project.html
+++ b/website/templates/website/project.html
@@ -159,8 +159,7 @@ <h1 class="sr-only">{{ project.name }}</h1>
           <iframe class="project-featured-video-player" 
                   src="{{ featured_video.get_embed }}" 
                   title="Featured video: {{ featured_video.title }}"
-                  allow="autoplay; fullscreen" 
-                  allowfullscreen
+                  allow="autoplay; fullscreen"
                   loading="lazy">
           </iframe>
         </div>