diff --git a/doc/glossary/glossary-terms.xml b/doc/glossary/glossary-terms.xml
index 2367ebb2..550900b2 100644
--- a/doc/glossary/glossary-terms.xml
+++ b/doc/glossary/glossary-terms.xml
@@ -7311,6 +7311,18 @@
       </glossdef>
     </glossentry>
 
+    <glossentry>
+      <glossterm>SELinux</glossterm>
+      <indexterm class="singular">
+          <primary>SELinux</primary>
+        </indexterm>
+
+      <glossdef>
+        <para>Linux kernel security module that provides the mechanism for
+          supporting access control policies.</para>
+      </glossdef>
+    </glossentry>
+
     <glossentry>
       <glossterm>server</glossterm>
       <indexterm class="singular">