diff --git a/lib/pleroma/web/activity_pub/mrf.ex b/lib/pleroma/web/activity_pub/mrf.ex
index 5ac4f9f20..23ea039c3 100644
--- a/lib/pleroma/web/activity_pub/mrf.ex
+++ b/lib/pleroma/web/activity_pub/mrf.ex
@@ -33,9 +33,11 @@ defmodule Pleroma.Web.ActivityPub.MRF do
         %{
           key: :transparency_exclusions,
           label: "MRF transparency exclusions",
-          type: {:list, :string},
+          type: {:list, :tuple},
+          key_placeholder: "instance",
+          value_placeholder: "reason",
           description:
-            "Exclude specific instance names from MRF transparency. The use of the exclusions feature will be disclosed in nodeinfo as a boolean value.",
+            "Exclude specific instance names from MRF transparency. The use of the exclusions feature will be disclosed in nodeinfo as a boolean value. You can also provide a reason for excluding these instance names. The instances and reasons won't be publicly disclosed.",
           suggestions: [
             "exclusion.com"
           ]
diff --git a/lib/pleroma/web/activity_pub/mrf/keyword_policy.ex b/lib/pleroma/web/activity_pub/mrf/keyword_policy.ex
index aebf78b46..1383fa757 100644
--- a/lib/pleroma/web/activity_pub/mrf/keyword_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/keyword_policy.ex
@@ -159,8 +159,8 @@ defmodule Pleroma.Web.ActivityPub.MRF.KeywordPolicy do
         %{
           key: :replace,
           type: {:list, :tuple},
-          keyPlaceholder: "pattern",
-          valuePlaceholder: "replacement",
+          key_placeholder: "instance",
+          value_placeholder: "reason",
           description: """
             **Pattern**: a string or [Regex](https://hexdocs.pm/elixir/Regex.html) in the format of `~r/PATTERN/`.