diff --git a/scheme/httpd/surflets/surflet-sxml.scm b/scheme/httpd/surflets/surflet-sxml.scm
index bcdb207..00829a2 100644
--- a/scheme/httpd/surflets/surflet-sxml.scm
+++ b/scheme/httpd/surflets/surflet-sxml.scm
@@ -53,6 +53,7 @@
      `(form (@ ((method ,real-method)
 		(action ,k-url)
 		,@(if attributes (cdr attributes) '())))
+	    ;; cdr == sxml-attribute-attributes
 	    ,@elems))))
 
 (define input-field-rule