diff --git a/index.html b/index.html
index b4c6f0dce..0239ddb32 100644
--- a/index.html
+++ b/index.html
@@ -1661,8 +1661,9 @@ <h3>Credential Subject</h3>
                    id="defn-credentialSubject">credentialSubject</dfn></dt>
           <dd>
 The value of the <code>credentialSubject</code> <a>property</a> is defined as a
-set of objects where each object MUST contain one or more <a>claims</a>
-expressed as property-value pairs of the <a>subject</a>. Each object MAY
+set of objects where each object MUST be the <a>subject</a> of one or more <a>claims</a>,
+which MUST be serialized inside the <code>credentialSubject</code> <a>claim</a>.
+Each object MAY
 also contain an <code>id</code> to identify the <a>subject</a>, as
 described in Section <a href="#identifiers"></a>.
           </dd>