diff --git a/rclcpp/include/rclcpp/callback_group.hpp b/rclcpp/include/rclcpp/callback_group.hpp
index e4eb0c9..58a91e5 100644
--- a/rclcpp/include/rclcpp/callback_group.hpp
+++ b/rclcpp/include/rclcpp/callback_group.hpp
@@ -40,7 +40,8 @@ class Executor;
 namespace callback_group
 {
 
-enum class CallbackGroupType {
+enum class CallbackGroupType
+{
   MutuallyExclusive,
   Reentrant
 };
diff --git a/rclcpp/include/rclcpp/parameter.hpp b/rclcpp/include/rclcpp/parameter.hpp
index 30cde6f..c802db9 100644
--- a/rclcpp/include/rclcpp/parameter.hpp
+++ b/rclcpp/include/rclcpp/parameter.hpp
@@ -35,7 +35,8 @@ namespace rclcpp
 namespace parameter
 {
 
-enum ParameterType {
+enum ParameterType
+{
   PARAMETER_NOT_SET=rcl_interfaces::ParameterType::PARAMETER_NOT_SET,
   PARAMETER_BOOL=rcl_interfaces::ParameterType::PARAMETER_BOOL,
   PARAMETER_INTEGER=rcl_interfaces::ParameterType::PARAMETER_INTEGER,