diff --git a/webapp/web/templates/freemarker/page/partials/head.ftl b/webapp/web/templates/freemarker/page/partials/head.ftl
index 1389b4c3a..f5e3d90dc 100644
--- a/webapp/web/templates/freemarker/page/partials/head.ftl
+++ b/webapp/web/templates/freemarker/page/partials/head.ftl
@@ -10,4 +10,6 @@
 
 <#include "headScripts.ftl">
 
+<#-- Inject head content specified in the controller. Currently this is used only to generate an rdf link on 
+an individual profile page. -->
 ${headContent!}
\ No newline at end of file