diff --git a/priv/repo/migrations/20190414125034_migrate_old_bookmarks.exs b/priv/repo/migrations/20190414125034_migrate_old_bookmarks.exs
index ebe69696e..134b7c6f7 100644
--- a/priv/repo/migrations/20190414125034_migrate_old_bookmarks.exs
+++ b/priv/repo/migrations/20190414125034_migrate_old_bookmarks.exs
@@ -18,7 +18,7 @@ defmodule Pleroma.Repo.Migrations.MigrateOldBookmarks do
     |> Enum.each(fn %{id: user_id, bookmarks: bookmarks} ->
       Enum.each(bookmarks, fn ap_id ->
         activity = Activity.get_create_by_object_ap_id(ap_id)
-        {:ok, _} = Bookmark.create(user_id, activity.id)
+	unless is_nil(activity), do: {:ok, _} = Bookmark.create(user_id, activity.id)
       end)
     end)