diff --git a/photologue_custom/views.py b/photologue_custom/views.py
index c12d0a1..49301ff 100644
--- a/photologue_custom/views.py
+++ b/photologue_custom/views.py
@@ -58,7 +58,7 @@ class CustomGalleryDetailView(DetailView):
         # List owners
         context['owners'] = []
         for photo in context['photos']:
-            if photo.extended.owner not in context['owners']:
+            if hasattr(photo, 'extended') and photo.extended.owner not in context['owners']:
                 context['owners'].append(photo.extended.owner)
 
         # Filter on owner