diff --git a/documentation/ref-manual/introduction.xml b/documentation/ref-manual/introduction.xml
index 6e8e7a087b..2a8a75850b 100644
--- a/documentation/ref-manual/introduction.xml
+++ b/documentation/ref-manual/introduction.xml
@@ -158,7 +158,7 @@
                         Packages needed if you are going to build out the
                         Yocto Project documentation manuals:
                         <literallayout class='monospaced'>
-     $ sudo apt-get install make xsltproc docbook-utils fop
+     $ sudo apt-get install make xsltproc docbook-utils fop dblatex xmlto
                         </literallayout></para></listitem>
                     <listitem><para><emphasis>ADT Installer Extras:</emphasis>
                         Packages needed if you are going to be using the
@@ -193,7 +193,7 @@
                         Yocto Project documentation manuals:
                         <literallayout class='monospaced'>
      $ sudo yum install make docbook-style-dsssl docbook-style-xsl \
-     docbook-dtds docbook-utils fop libxslt
+     docbook-dtds docbook-utils fop libxslt dblatex xmlto
                         </literallayout></para></listitem>
                     <listitem><para><emphasis>ADT Installer Extras:</emphasis>
                         Packages needed if you are going to be using the
@@ -227,7 +227,7 @@
                         Packages needed if you are going to build out the
                         Yocto Project documentation manuals:
                         <literallayout class='monospaced'>
-     $ sudo zypper install make fop xsltproc
+     $ sudo zypper install make fop xsltproc dblatex xmlto
                         </literallayout></para></listitem>
                     <listitem><para><emphasis>ADT Installer Extras:</emphasis>
                         Packages needed if you are going to be using the
@@ -262,7 +262,7 @@
                         Yocto Project documentation manuals:
                         <literallayout class='monospaced'>
      $ sudo yum -y install make docbook-style-dsssl docbook-style-xsl \
-     docbook-dtds docbook-utils fop libxslt
+     docbook-dtds docbook-utils fop libxslt dblatex xmlto
                         </literallayout></para></listitem>
                     <listitem><para><emphasis>ADT Installer Extras:</emphasis>
                         Packages needed if you are going to be using the