diff --git a/src/xmpp/ad-hoc.go b/src/xmpp/ad-hoc.go
index 2466408..182089b 100644
--- a/src/xmpp/ad-hoc.go
+++ b/src/xmpp/ad-hoc.go
@@ -30,6 +30,7 @@ const (
 	TypeAdHocFieldListSingle = "list-single"
 	TypeAdHocFieldTextSingle = "text-single"
 	TypeAdHocFieldJidSingle  = "jid-single"
+	TypeAdHocFieldTextPrivate = "text-private"
 )
 
 type AdHocCommand struct {