--- biff-0.17.pre20000412.orig/comsat/comsat.8
+++ biff-0.17.pre20000412/comsat/comsat.8
@@ -54,7 +54,7 @@
 .Xr inetd 8 ) .
 The one line messages are of the form:
 .Pp
-.Dl user@mailbox-offset
+.Dl user@mailbox-offset:/path/to/mailbox
 .Pp
 If the
 .Em user