diff --git a/app/views/asciicasts/_preview.html.slim b/app/views/asciicasts/_preview.html.slim
index fc4a620..a766eab 100644
--- a/app/views/asciicasts/_preview.html.slim
+++ b/app/views/asciicasts/_preview.html.slim
@@ -1,4 +1,4 @@
-- cache ['thumbnail', asciicast, asciicast.user] do
+- cache ['thumbnail', asciicast, asciicast.user, !!no_created_at] do
   .preview
     = link_to asciicast, class: 'thumbnail-link' do
       .play-button