diff --git a/src/ns.rs b/src/ns.rs
index 978a852..9d59435 100644
--- a/src/ns.rs
+++ b/src/ns.rs
@@ -135,6 +135,9 @@ pub const JINGLE_S5B: &str = "urn:xmpp:jingle:transports:s5b:1";
 /// XEP-0261: Jingle In-Band Bytestreams Transport Method
 pub const JINGLE_IBB: &str = "urn:xmpp:jingle:transports:ibb:1";
 
+/// XEP-0277: Microblogging over XMPP
+pub const MICROBLOG: &str = "urn:xmpp:microblog:0";
+
 /// XEP-0297: Stanza Forwarding
 pub const FORWARD: &str = "urn:xmpp:forward:0";