diff --git a/rosidl_adapter/rosidl_adapter/parser.py b/rosidl_adapter/rosidl_adapter/parser.py
index c6ae74ad3..3355e2d95 100644
--- a/rosidl_adapter/rosidl_adapter/parser.py
+++ b/rosidl_adapter/rosidl_adapter/parser.py
@@ -839,6 +839,7 @@ def validate_field_types(spec: Union[MessageSpecification,
                 (spec_type, base_type, field))
 
 
+
 class ServiceSpecification:
 
     def __init__(self, pkg_name: str, srv_name: str, request: MessageSpecification,