1 files changed, 12 insertions, 4 deletions
diff --git a/lib/pleroma/web/mastodon_api/views/conversation_view.ex b/lib/pleroma/web/mastodon_api/views/conversation_view.ex
index a91994915..46b63b54b 100644
--- a/lib/pleroma/web/mastodon_api/views/conversation_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/conversation_view.ex
@@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.MastodonAPI.ConversationView do
@@ -33,8 +33,15 @@ defmodule Pleroma.Web.MastodonAPI.ConversationView do
       end
 
     activity = Activity.get_by_id_with_object(last_activity_id)
-    # Conversations return all users except the current user.
-    users = Enum.reject(participation.recipients, &(&1.id == user.id))
+
+    # Conversations return all users except the current user,
+    # except when the current user is the only participant
+    users =
+      if length(participation.recipients) > 1 do
+        Enum.reject(participation.recipients, &(&1.id == user.id))
+      else
+        participation.recipients
+      end
 
     %{
       id: participation.id |> to_string(),
@@ -43,7 +50,8 @@ defmodule Pleroma.Web.MastodonAPI.ConversationView do
       last_status:
         render(StatusView, "show.json",
           activity: activity,
-          direct_conversation_id: participation.id
+          direct_conversation_id: participation.id,
+          for: user
         )
     }
   end