diff --git a/lib/schemable/configuration.rb b/lib/schemable/configuration.rb
index 97513f8..fbe45f9 100644
--- a/lib/schemable/configuration.rb
+++ b/lib/schemable/configuration.rb
@@ -16,6 +16,7 @@ module Schemable
       :enum_prefix_for_simple_enum,
       :enum_suffix_for_simple_enum,
       :custom_meta_response_schema,
+      :infer_expand_nested_from_expand,
       :infer_attributes_from_custom_method,
       :infer_attributes_from_jsonapi_serializable
     )
@@ -32,6 +33,7 @@ module Schemable
       @custom_meta_response_schema = nil
       @enum_prefix_for_simple_enum = nil
       @enum_suffix_for_simple_enum = nil
+      @infer_expand_nested_from_expand = false
       @infer_attributes_from_custom_method = nil
       @infer_attributes_from_jsonapi_serializable = false
     end
diff --git a/sig/schemable/configuration.rbs b/sig/schemable/configuration.rbs
index ecef3b3..02c2cb1 100644
--- a/sig/schemable/configuration.rbs
+++ b/sig/schemable/configuration.rbs
@@ -8,6 +8,7 @@ module Schemable
     attr_accessor custom_defined_enum_method: Symbol?
     attr_accessor enum_prefix_for_simple_enum: String?
     attr_accessor enum_suffix_for_simple_enum: String?
+    attr_accessor infer_expand_nested_from_expand: bool
     attr_accessor custom_type_mappers: Hash[Symbol, any]
     attr_accessor infer_attributes_from_custom_method: Symbol?
     attr_accessor custom_meta_response_schema: Hash[Symbol, any]?