diff --git a/lib/pleroma/plugs/http_security_plug.ex b/lib/pleroma/plugs/http_security_plug.ex
index 620408d0f..1420a9611 100644
--- a/lib/pleroma/plugs/http_security_plug.ex
+++ b/lib/pleroma/plugs/http_security_plug.ex
@@ -114,7 +114,7 @@ defp get_proxy_and_attachment_sources do
       end)
 
     media_proxy_base_url =
-      if Config.get([Pleroma.Upload, :base_url]),
+      if Config.get([:media_proxy, :base_url]),
         do: URI.parse(Config.get([:media_proxy, :base_url])).host
 
     upload_base_url =