diff --git a/lib/pleroma/web/activity_pub/mrf/media_proxy_warming_policy.ex b/lib/pleroma/web/activity_pub/mrf/media_proxy_warming_policy.ex
index dfab105a3..5d8bb72aa 100644
--- a/lib/pleroma/web/activity_pub/mrf/media_proxy_warming_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/media_proxy_warming_policy.ex
@@ -27,7 +27,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy do
       end
 
     url
-    |> MediaProxy.url()
+    |> MediaProxy.preview_url()
     |> HTTP.get([], adapter: opts)
   end