diff --git a/lib/pleroma/web/mastodon_api/views/instance_view.ex b/lib/pleroma/web/mastodon_api/views/instance_view.ex
index db40ea3fa..a341ca6f4 100644
--- a/lib/pleroma/web/mastodon_api/views/instance_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/instance_view.ex
@@ -98,7 +98,15 @@ def federation do
       |> Map.merge(%{
         quarantined_instances:
           quarantined
-          |> Enum.map(fn {instance, reason} -> %{"instance" => instance, "reason" => reason} end)
+          |> Enum.map(fn {instance, _reason} -> instance end)
+      })
+      |> Map.merge(%{
+        quarantined_instances_info: %{
+          "quarantined_instances" =>
+            quarantined
+            |> Enum.map(fn {instance, reason} -> {instance, %{"reason" => reason}} end)
+            |> Enum.into(%{})
+        }
       })
     else
       %{}
diff --git a/test/pleroma/web/node_info_test.exs b/test/pleroma/web/node_info_test.exs
index eb6b8bf6c..9deceb1b5 100644
--- a/test/pleroma/web/node_info_test.exs
+++ b/test/pleroma/web/node_info_test.exs
@@ -150,20 +150,42 @@ test "it shows default features flags", %{conn: conn} do
            )
   end
 
-  test "it shows quarantined instances data if enabled", %{conn: conn} do
-    clear_config([:mrf, :transparency], true)
+  describe "Quarantined instances" do
+    setup do
+      clear_config([:mrf, :transparency], true)
+      quarantined_instances = [{"example.com", "reason to quarantine"}]
+      clear_config([:instance, :quarantined_instances], quarantined_instances)
+    end
 
-    quarantined_instances = [{"example.com", ""}]
-    clear_config([:instance, :quarantined_instances], quarantined_instances)
+    test "shows quarantined instances data if enabled", %{conn: conn} do
+      expected_config = ["example.com"]
 
-    expected_config = [%{"instance" => "example.com", "reason" => ""}]
+      response =
+        conn
+        |> get("/nodeinfo/2.1.json")
+        |> json_response(:ok)
 
-    response =
-      conn
-      |> get("/nodeinfo/2.1.json")
-      |> json_response(:ok)
+      assert response["metadata"]["federation"]["quarantined_instances"] == expected_config
+    end
 
-    assert response["metadata"]["federation"]["quarantined_instances"] == expected_config
+    test "shows extra information in the quarantined_info field for relevant entries", %{
+      conn: conn
+    } do
+      clear_config([:mrf, :transparency], true)
+
+      expected_config = %{
+        "quarantined_instances" => %{
+          "example.com" => %{"reason" => "reason to quarantine"}
+        }
+      }
+
+      response =
+        conn
+        |> get("/nodeinfo/2.1.json")
+        |> json_response(:ok)
+
+      assert response["metadata"]["federation"]["quarantined_instances_info"] == expected_config
+    end
   end
 
   describe "MRF SimplePolicy" do
@@ -205,7 +227,7 @@ test "performs exclusions from MRF transparency data if configured", %{conn: con
       assert response["metadata"]["federation"]["exclusions"] == true
     end
 
-    test "shows extra information in the mrf_simple_extra field for relevant entries", %{
+    test "shows extra information in the mrf_simple_info field for relevant entries", %{
       conn: conn
     } do
       simple_config = %{