diff --git a/lib/schemable.rb b/lib/schemable.rb
index 5792227..1fa7fbd 100644
--- a/lib/schemable.rb
+++ b/lib/schemable.rb
@@ -7,6 +7,7 @@ require_relative 'schemable/schema_modifier'
 require_relative 'schemable/attribute_schema_generator'
 require_relative 'schemable/response_schema_generator'
 require_relative 'schemable/relationship_schema_generator'
+require_relative 'schemable/included_schema_generator'
 
 module Schemable
   class Error < StandardError; end