diff --git a/doc/functions.xml b/doc/functions.xml
index 2a9cc44d5c5..9bbf97c5c71 100644
--- a/doc/functions.xml
+++ b/doc/functions.xml
@@ -1,5 +1,6 @@
 <chapter xmlns="http://docbook.org/ns/docbook"
 	 xmlns:xlink="http://www.w3.org/1999/xlink"
+         xmlns:xi="http://www.w3.org/2001/XInclude"
 	 xml:id="chap-functions">
  <title>Functions reference</title>
  <para>
@@ -444,6 +445,7 @@ merge:"diff3"
    <filename>./bin/start.sh</filename> -- relative paths are supported.
   </para>
  </section>
+ <xi:include href="shell.section.xml" />
  <section xml:id="sec-pkgs-dockerTools">
   <title>pkgs.dockerTools</title>