diff --git a/api-ref/src/docbkx/ch_compute-v2.1.xml b/api-ref/src/docbkx/ch_compute-v2.1.xml
index 1551877c0..ce651c068 100644
--- a/api-ref/src/docbkx/ch_compute-v2.1.xml
+++ b/api-ref/src/docbkx/ch_compute-v2.1.xml
@@ -433,8 +433,11 @@
     <title>Extensions (extensions)</title>
     <para>
       Lists available extensions and shows information for an extension, by
-      alias. The OpenStack Compute API v2.0 is extensible. For information
-      about extensions, see <link
+      alias.
+    </para>
+    <para>
+      OpenStack Compute API v2.0 supports extensions. However, extensions are
+      deprecated in Compute API v2.1. For information about extensions, see <link
       xlink:href="http://developer.openstack.org/api-guide/compute/extensions.html">Extensions</link>.
     </para>
     <wadl:resources