diff --git a/extra/ntp/ntp-docs.factor b/extra/ntp/ntp-docs.factor
index 9fb3090bd5..406d7f291a 100644
--- a/extra/ntp/ntp-docs.factor
+++ b/extra/ntp/ntp-docs.factor
@@ -1,12 +1,12 @@
 ! Copyright (C) 2010 John Benediktsson
 ! See http://factorcode.org/license.txt for BSD license
 
-USING: help.syntax help.markup ntp strings ;
+USING: help.syntax help.markup ntp ntp.private strings ;
 
 IN: ntp
 
 HELP: <ntp>
-{ $values { "host" string } }
+{ $values { "host" string } { "ntp" ntp } }
 { $description
     "Requests the time from the specified NTP time server."
 } ;