diff --git a/index.html b/index.html
index f020571..199fc98 100644
--- a/index.html
+++ b/index.html
@@ -530,7 +530,7 @@ <h3>Terminology</h3>
             </p>
           </dd>
 
-          <dt><dfn class="export">controlled identifier document</dfn></dt>
+          <dt><dfn class="export" data-lt="controlled identifier document|CID">controlled identifier document</dfn></dt>
           <dd>
             <p>
 A document that contains cryptographic material and lists service endpoints that