diff --git a/rclcpp/include/rclcpp/node_impl.hpp b/rclcpp/include/rclcpp/node_impl.hpp
index d64da26..363d5e7 100644
--- a/rclcpp/include/rclcpp/node_impl.hpp
+++ b/rclcpp/include/rclcpp/node_impl.hpp
@@ -185,7 +185,7 @@ Node::create_client(
 template<typename ServiceT>
 typename service::Service<ServiceT>::SharedPtr
 Node::create_service(
-  const std::string &service_name,
+  const std::string & service_name,
   typename rclcpp::service::Service<ServiceT>::CallbackType callback,
   rclcpp::callback_group::CallbackGroup::SharedPtr group)
 {
diff --git a/rclcpp/include/rclcpp/service.hpp b/rclcpp/include/rclcpp/service.hpp
index 46b3294..c91c788 100644
--- a/rclcpp/include/rclcpp/service.hpp
+++ b/rclcpp/include/rclcpp/service.hpp
@@ -87,12 +87,12 @@ class Service : public ServiceBase
 public:
   typedef std::function<
       void (const std::shared_ptr<typename ServiceT::Request> &,
-          std::shared_ptr<typename ServiceT::Response> &)> CallbackType;
+      std::shared_ptr<typename ServiceT::Response> &)> CallbackType;
 
   typedef std::function<
       void (const std::shared_ptr<rmw_request_id_t> &,
-          const std::shared_ptr<typename ServiceT::Request> &,
-          std::shared_ptr<typename ServiceT::Response> &)> CallbackWithHeaderType;
+      const std::shared_ptr<typename ServiceT::Request> &,
+      std::shared_ptr<typename ServiceT::Response> &)> CallbackWithHeaderType;
   RCLCPP_MAKE_SHARED_DEFINITIONS(Service);
 
   Service(