diff --git a/scheme/packages.scm b/scheme/packages.scm
index 4f77c75..5d916b2 100644
--- a/scheme/packages.scm
+++ b/scheme/packages.scm
@@ -721,6 +721,7 @@
 (define-structure httpd-responses httpd-responses-interface
   (open scheme
 	(subset scsh (format-date write-string time date))
+	url ;http-url->string
 	syslog
 	define-record-types
 	finite-types