diff --git a/doc/glossary/glossary-terms.xml b/doc/glossary/glossary-terms.xml
index 39827d177b..0cc7fb5501 100644
--- a/doc/glossary/glossary-terms.xml
+++ b/doc/glossary/glossary-terms.xml
@@ -269,6 +269,18 @@
       </glossdef>
     </glossentry>
 
+    <glossentry>
+      <glossterm>administrator</glossterm>
+      <indexterm class="singular">
+          <primary>administrator</primary>
+        </indexterm>
+
+      <glossdef>
+        <para>The person responsible for installing, configuring,
+        and managing an OpenStack cloud.</para>
+      </glossdef>
+    </glossentry>
+
     <glossentry>
       <glossterm>admin server</glossterm>
       <indexterm class="singular">