diff --git a/tracetools_analysis/analysis/ros_processor.py b/tracetools_analysis/analysis/ros_processor.py
index c0c5b62..430f6ac 100644
--- a/tracetools_analysis/analysis/ros_processor.py
+++ b/tracetools_analysis/analysis/ros_processor.py
@@ -26,23 +26,40 @@ class RosProcessor(EventHandler):
     def __init__(self):
         # Link a ROS trace event to its corresponding handling method
         handler_map = {
-            'ros2:rcl_init': self._handle_rcl_init,
-            'ros2:rcl_node_init': self._handle_rcl_node_init,
-            'ros2:rcl_publisher_init': self._handle_rcl_publisher_init,
-            'ros2:rcl_subscription_init': self._handle_subscription_init,
-            'ros2:rclcpp_subscription_callback_added': self._handle_rclcpp_subscription_callback_added,
-            'ros2:rclcpp_subscription_callback_start': self._handle_rclcpp_subscription_callback_start,
-            'ros2:rclcpp_subscription_callback_end': self._handle_rclcpp_subscription_callback_end,
-            'ros2:rcl_service_init': self._handle_rcl_service_init,
-            'ros2:rclcpp_service_callback_added': self._handle_rclcpp_service_callback_added,
-            'ros2:rclcpp_service_callback_start': self._handle_rclcpp_service_callback_start,
-            'ros2:rclcpp_service_callback_end': self._handle_rclcpp_service_callback_end,
-            'ros2:rcl_client_init': self._handle_rcl_client_init,
-            'ros2:rcl_timer_init': self._handle_rcl_timer_init,
-            'ros2:rclcpp_timer_callback_added': self._handle_rclcpp_timer_callback_added,
-            'ros2:rclcpp_timer_callback_start': self._handle_rclcpp_timer_callback_start,
-            'ros2:rclcpp_timer_callback_end': self._handle_rclcpp_timer_callback_end,
-            'ros2:rclcpp_callback_register': self._handle_rclcpp_callback_register,
+            'ros2:rcl_init':
+                self._handle_rcl_init,
+            'ros2:rcl_node_init':
+                self._handle_rcl_node_init,
+            'ros2:rcl_publisher_init':
+                self._handle_rcl_publisher_init,
+            'ros2:rcl_subscription_init':
+                self._handle_subscription_init,
+            'ros2:rclcpp_subscription_callback_added':
+                self._handle_rclcpp_subscription_callback_added,
+            'ros2:rclcpp_subscription_callback_start':
+                self._handle_rclcpp_subscription_callback_start,
+            'ros2:rclcpp_subscription_callback_end':
+                self._handle_rclcpp_subscription_callback_end,
+            'ros2:rcl_service_init':
+                self._handle_rcl_service_init,
+            'ros2:rclcpp_service_callback_added':
+                self._handle_rclcpp_service_callback_added,
+            'ros2:rclcpp_service_callback_start':
+                self._handle_rclcpp_service_callback_start,
+            'ros2:rclcpp_service_callback_end':
+                self._handle_rclcpp_service_callback_end,
+            'ros2:rcl_client_init':
+                self._handle_rcl_client_init,
+            'ros2:rcl_timer_init':
+                self._handle_rcl_timer_init,
+            'ros2:rclcpp_timer_callback_added':
+                self._handle_rclcpp_timer_callback_added,
+            'ros2:rclcpp_timer_callback_start':
+                self._handle_rclcpp_timer_callback_start,
+            'ros2:rclcpp_timer_callback_end':
+                self._handle_rclcpp_timer_callback_end,
+            'ros2:rclcpp_callback_register':
+                self._handle_rclcpp_callback_register,
         }
         super().__init__(handler_map)