diff --git a/xmpp-parsers/src/ns.rs b/xmpp-parsers/src/ns.rs
index 49d0faa..42746ff 100644
--- a/xmpp-parsers/src/ns.rs
+++ b/xmpp-parsers/src/ns.rs
@@ -12,6 +12,8 @@ pub const XMPP_STANZAS: &str = "urn:ietf:params:xml:ns:xmpp-stanzas";
 /// RFC 6120: Extensible Messaging and Presence Protocol (XMPP): Core
 pub const STREAM: &str = "http://etherx.jabber.org/streams";
 /// RFC 6120: Extensible Messaging and Presence Protocol (XMPP): Core
+pub const TLS: &str = "urn:ietf:params:xml:ns:xmpp-tls";
+/// RFC 6120: Extensible Messaging and Presence Protocol (XMPP): Core
 pub const SASL: &str = "urn:ietf:params:xml:ns:xmpp-sasl";
 /// RFC 6120: Extensible Messaging and Presence Protocol (XMPP): Core
 pub const BIND: &str = "urn:ietf:params:xml:ns:xmpp-bind";