diff --git a/xep-0228.xml b/xep-0228.xml
index 3ef31c34..99aa4fae 100644
--- a/xep-0228.xml
+++ b/xep-0228.xml
@@ -29,7 +29,7 @@
   </revision>
 </header>
 <section1 topic='Introduction' anchor='intro'>
-  <p>Shared editing applications such as whiteboarding have been developed usign XMPP, but there is no general editing and synchronization protocol that can be used by such applications. This document attempts to define the requirements for such a protocol so that work can proceed on protocol development.</p>
+  <p>Shared editing applications such as whiteboarding have been developed using XMPP, but there is no general editing and synchronization protocol that can be used by such applications. This document attempts to define the requirements for such a protocol so that work can proceed on protocol development.</p>
 </section1>
 <section1 topic='Requirements' anchor='reqs'>
   <section2 topic='General' anchor='general'>