diff --git a/priv/repo/migrations/20190603162018_add_object_in_reply_to_index.exs b/priv/repo/migrations/20190603162018_add_object_in_reply_to_index.exs
new file mode 100644
index 000000000..df4ac7782
--- /dev/null
+++ b/priv/repo/migrations/20190603162018_add_object_in_reply_to_index.exs
@@ -0,0 +1,7 @@
+defmodule Pleroma.Repo.Migrations.AddObjectInReplyToIndex do
+  use Ecto.Migration
+
+  def change do
+    create index(:objects, ["(data->>'inReplyTo')"], name: :objects_in_reply_to_index)
+  end
+end