diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1b35dc1..f74c63e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,6 +17,9 @@ ament_auto_add_library(laser_filter_chains SHARED
                          src/scan_to_cloud_filter_chain.cpp
                          src/scan_to_scan_filter_chain.cpp)
 
+# The rclcpp_components_register_node macro registers an rclcpp component for the node with
+# the ament resource index AND creates a templated executable that spins the given node.
+
 rclcpp_components_register_node(
     laser_filter_chains
     PLUGIN "ScanToCloudFilterChain"