diff --git a/docs/plugins/inspect/plugin-libav.xml b/docs/plugins/inspect/plugin-libav.xml
index d6acfeed6b..1aac113835 100644
--- a/docs/plugins/inspect/plugin-libav.xml
+++ b/docs/plugins/inspect/plugin-libav.xml
@@ -3,7 +3,7 @@
   <description>All libav codecs and formats (local snapshot)</description>
   <filename>../../ext/libav/.libs/libgstlibav.so</filename>
   <basename>libgstlibav.so</basename>
-  <version>1.8.0</version>
+  <version>1.9.0.1</version>
   <license>LGPL</license>
   <source>gst-libav</source>
   <package>libav</package>
@@ -2897,7 +2897,7 @@
           <name>sink</name>
           <direction>sink</direction>
           <presence>always</presence>
-          <details>unknown/unknown</details>
+          <details>audio/G729</details>
         </caps>
         <caps>
           <name>src</name>
@@ -10306,6 +10306,12 @@
       <description>libav G.729 BIT file format muxer</description>
       <author>Wim Taymans &lt;wim.taymans@chello.be&gt;, Ronald Bultje &lt;rbultje@ronald.bitfreak.net&gt;</author>
       <pads>
+        <caps>
+          <name>audio_%u</name>
+          <direction>sink</direction>
+          <presence>request</presence>
+          <details>audio/G729, channels=(int)[ 1, 2 ], rate=(int)[ 4000, 96000 ]</details>
+        </caps>
         <caps>
           <name>src</name>
           <direction>source</direction>