diff --git a/index.html b/index.html
index 3fe6295..68e4a0d 100644
--- a/index.html
+++ b/index.html
@@ -966,7 +966,7 @@ <h4>Proof Configuration (ecdsa-jcs-2019)</h4>
 Let <var>proofConfig</var> be a clone of the <var>options</var> object.
             </li>
             <li>
-If <var>proofConfig</var>.<var>type</var> is not set to `DataIntegrityProof` and
+If <var>proofConfig</var>.<var>type</var> is not set to `DataIntegrityProof` and/or
 <var>proofConfig</var>.<var>cryptosuite</var> is not set to `ecdsa-jcs-2019`, an
 `INVALID_PROOF_CONFIGURATION` error MUST be raised.
             </li>