diff --git a/config/config.exs b/config/config.exs
index 7385fb6c3..1ec4b4d85 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -405,6 +405,14 @@ config :pleroma, :media_proxy,
   ],
   whitelist: []
 
+config :pleroma, Pleroma.Web.MediaProxy.Invalidation.Http, %{
+  "method" => :purge,
+  "headers" => [],
+  "options" => []
+}
+
+config :pleroma, Pleroma.Web.MediaProxy.Invalidation.Script, script_path: nil
+
 config :pleroma, :chat, enabled: true
 
 config :phoenix, :format_encoders, json: Jason
diff --git a/docs/configuration/cheatsheet.md b/docs/configuration/cheatsheet.md
index 505acb293..e841c2bec 100644
--- a/docs/configuration/cheatsheet.md
+++ b/docs/configuration/cheatsheet.md
@@ -283,10 +283,11 @@ This strategy allow perform custom http request to purge cache.
 
 Example:
 ```elixir
-config :pleroma, Pleroma.Web.MediaProxy.Invalidation.Http,
-  method: :purge,
-  headers: [],
-  options: []
+config :pleroma, Pleroma.Web.MediaProxy.Invalidation.Http, %{
+  "method" => :purge,
+  "headers" => [],
+  "options" => []
+}
 ```
 
 ## Link previews
diff --git a/lib/pleroma/web/media_proxy/invalidations/http.ex b/lib/pleroma/web/media_proxy/invalidations/http.ex
index 07248df6e..eec95e7e0 100644
--- a/lib/pleroma/web/media_proxy/invalidations/http.ex
+++ b/lib/pleroma/web/media_proxy/invalidations/http.ex
@@ -17,7 +17,8 @@ defmodule Pleroma.Web.MediaProxy.Invalidation.Http do
     Logger.debug("Running cache purge: #{inspect(urls)}")
 
     Enum.each(urls, fn url ->
-      with {:error, error} <- do_purge(method, url, headers, options) do
+      with {:error, error} <-
+             do_purge(method, url |> Pleroma.Web.MediaProxy.url(), headers, options) do
         Logger.error("Error while cache purge: url - #{url}, error: #{inspect(error)}")
       end
     end)