diff --git a/xep-0158.xml b/xep-0158.xml
index cc8bef6b..8b194484 100644
--- a/xep-0158.xml
+++ b/xep-0158.xml
@@ -127,7 +127,7 @@
 
 <section1 topic='Protocol' anchor='protocol'>
   <section2 topic='Simple Challenge' anchor='protocol-simple'>
-    <section3 topic='Trigggering Stanza' anchor='protocol-trigger'>
+    <section3 topic='Triggering Stanza' anchor='protocol-trigger'>
       <p>A "triggering stanza" is an XMPP &MESSAGE;, &PRESENCE;, or &IQ; stanza that is deemed abusive by the receiving entity (e.g., a client) or an intermediate router (e.g., a server). The entity that generates a triggering stanza is called a "sender".</p>
       <example caption='Sender Generates Triggering Stanza'><![CDATA[
 <message from='robot@abuser.com/zombie'