diff --git a/agent/custom/includes/custom_side_nav.php b/agent/custom/includes/custom_side_nav.php
index 506404e66..86fb189ea 100644
--- a/agent/custom/includes/custom_side_nav.php
+++ b/agent/custom/includes/custom_side_nav.php
@@ -1,3 +1,4 @@
+<!-- Do not modify - copy if you need to edit -->
 <!-- Main Sidebar Container -->
 <aside class="app-sidebar shadow d-print-none" data-bs-theme="dark">