diff --git a/spec/serializers/topic_list_serializer_spec.rb b/spec/serializers/topic_list_serializer_spec.rb
index 98a865d..8e212e8 100644
--- a/spec/serializers/topic_list_serializer_spec.rb
+++ b/spec/serializers/topic_list_serializer_spec.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require 'rails_helper'
+require_relative '../support/assign_allowed_group'
 
 RSpec.describe TopicListSerializer do
   fab!(:user) { Fabricate(:user) }