diff --git a/palps.rkt b/palps.rkt
index 2f5de3b..811e862 100755
--- a/palps.rkt
+++ b/palps.rkt
@@ -14,6 +14,7 @@
 ;; they are an authorized user.
 (when (not (directory-exists? call))
   (displayln "sorry, but you are not an authorized user of the PALPS system")
+  (displayln "visit https://gitea.farpn.net/w6vvn/palps for an explanation")
   (flush-output)
   (exit))