diff --git a/xep-0333.xml b/xep-0333.xml
index 35762045..6545d6d4 100644
--- a/xep-0333.xml
+++ b/xep-0333.xml
@@ -250,12 +250,13 @@
        even maliciously reused by another MUC occupant.</p>
 
     <p>Therefore, if a MUC announces support for &xep0359; then clients MUST always use
-       the MUC-assigned id for Chat Markers. The id will be contained in a &lt;stanza-id&gt;
+       the MUC-assigned id for Chat Markers. The id will be contained in a &lt;stanza-id/&gt;
        element inserted into the stanza with a 'by' attribute matching the MUC's own JID.</p>
 
-    <p>As per XEP-0359 security considerations, if XEP-0359 support is not announced then
-       &lt;stanza-id/&gt; elements with a 'by' attribute that match the MUC's own JID should
-       be considered spoofed and MUST be ignored.</p>
+    <p>As per XEP-0359 security considerations, if XEP-0359 support is not announced on the
+       MUC room's JID then &lt;stanza-id/&gt; elements with a 'by' attribute that match the
+       MUC's JID should be considered spoofed and MUST be ignored.</p>
+
 <example caption='Example MUC message with a markable Chat Marker'>
 <![CDATA[
 <message