diff --git a/layouts/partials/head-css.html b/layouts/partials/head-css.html
index b308ca7c..56ab1a1c 100644
--- a/layouts/partials/head-css.html
+++ b/layouts/partials/head-css.html
@@ -1,7 +1,8 @@
 {{- /*
 
-    A modified version of the head-css.html partial of Docsy, that allows
-    post-processing of the generated CSS to remove unused selectors.
+    A modified version of the head-css.html partial of Docsy, that adds a call to
+    `resources.PostProcess`, allowing post-processing of the generated CSS to
+    remove unused selectors.
 
 */ -}}