diff --git a/xep-0359.xml b/xep-0359.xml
index 256f7475..69a1496e 100644
--- a/xep-0359.xml
+++ b/xep-0359.xml
@@ -179,7 +179,35 @@
   </section2>
 </section1>
 <section1 topic='XML Schema' anchor='schema'>
-  <p>REQUIRED for protocol specifications.</p>
+  <code><![CDATA[
+<?xml version='1.0' encoding='UTF-8'?>
+
+<xs:schema
+    xmlns:xs='http://www.w3.org/2001/XMLSchema'
+    targetNamespace='urn:xmpp:sid:0'
+    elementFormDefault='qualified'>
+
+  <xs:annotation>
+    <xs:documentation>
+      The protocol documented by this schema is defined in
+      XEP-0359: https://www.xmpp.org/extensions/xep-0359.html
+    </xs:documentation>
+  </xs:annotation>
+
+  <xs:element name='stanza-id'>
+    <xs:complexType>
+      <xs:attribute name='id' type='xs:string' use='required'/>
+      <xs:attribute name='by' type='xs:string' use='required'/>
+    </xs:complexType>
+  </xs:element>
+
+  <xs:element name='origin-id'>
+    <xs:complexType>
+      <xs:attribute name='id' type='xs:string' use='required'/>
+    </xs:complexType>
+  </xs:element>
+
+</xs:schema>]]></code>
 </section1>
 <section1 topic='Acknowledgements' anchor='ack'>
   <p>Thanks to Thijs Alkemade and Georg Lukas for providing feedback.</p>