diff --git a/lib/pleroma/object.ex b/lib/pleroma/object.ex
index a31f40d07..f932034d7 100644
--- a/lib/pleroma/object.ex
+++ b/lib/pleroma/object.ex
@@ -1,9 +1,16 @@
 defmodule Pleroma.Object do
   use Ecto.Schema
+  alias Pleroma.{Repo, Object}
+  import Ecto.Query
 
   schema "objects" do
     field :data, :map
 
     timestamps()
   end
+
+  def get_by_ap_id(ap_id) do
+    Repo.one(from object in Object,
+      where: fragment("? @> ?", object.data, ^%{id: ap_id}))
+  end
 end
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 6c8250de8..b01def693 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -8,6 +8,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
     map = if map["object"] do
       object = Map.put_new_lazy(map["object"], "id", &generate_object_id/0)
+      Repo.insert!(%Object{data: object})
       Map.put(map, "object", object)
     else
       map
diff --git a/test/web/activity_pub/activity_pub_test.exs b/test/web/activity_pub/activity_pub_test.exs
index 0e778d887..2c6f67621 100644
--- a/test/web/activity_pub/activity_pub_test.exs
+++ b/test/web/activity_pub/activity_pub_test.exs
@@ -25,7 +25,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
       assert activity.data["id"] == given_id
     end
 
-    test "adds an id to a given object if it lacks one" do
+    test "adds an id to a given object if it lacks one and inserts it to the object database" do
       data = %{
         "object" => %{
           "ok" => true
@@ -34,6 +34,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
 
       {:ok, %Activity{} = activity} = ActivityPub.insert(data)
       assert is_binary(activity.data["object"]["id"])
+      assert %Object{} = Object.get_by_ap_id(activity.data["object"]["id"])
     end
   end