diff --git a/documentation/toaster-manual/toaster-manual-customization.xsl b/documentation/toaster-manual/toaster-manual-customization.xsl
index d78694ac14..3a9b22eb8e 100644
--- a/documentation/toaster-manual/toaster-manual-customization.xsl
+++ b/documentation/toaster-manual/toaster-manual-customization.xsl
@@ -1,4 +1,6 @@
 <?xml version='1.0'?>
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
+
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
 
   <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
diff --git a/documentation/toaster-manual/toaster-manual-intro.xml b/documentation/toaster-manual/toaster-manual-intro.xml
index e84964c4e1..6ee9ec720a 100644
--- a/documentation/toaster-manual/toaster-manual-intro.xml
+++ b/documentation/toaster-manual/toaster-manual-intro.xml
@@ -1,6 +1,7 @@
 <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
 
 <chapter id='toaster-manual-intro'>
 <title>Introduction</title>
diff --git a/documentation/toaster-manual/toaster-manual-reference.xml b/documentation/toaster-manual/toaster-manual-reference.xml
index 7440580e7c..ae267f4184 100644
--- a/documentation/toaster-manual/toaster-manual-reference.xml
+++ b/documentation/toaster-manual/toaster-manual-reference.xml
@@ -1,6 +1,7 @@
 <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
 
 <chapter id='toaster-manual-reference'>
 
diff --git a/documentation/toaster-manual/toaster-manual-setup-and-use.xml b/documentation/toaster-manual/toaster-manual-setup-and-use.xml
index b4caebbe0f..d810b9d57c 100644
--- a/documentation/toaster-manual/toaster-manual-setup-and-use.xml
+++ b/documentation/toaster-manual/toaster-manual-setup-and-use.xml
@@ -1,6 +1,7 @@
 <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
 
 <chapter id='toaster-manual-setup-and-use'>
 
diff --git a/documentation/toaster-manual/toaster-manual-start.xml b/documentation/toaster-manual/toaster-manual-start.xml
index fc187ecd5e..8a857006e5 100644
--- a/documentation/toaster-manual/toaster-manual-start.xml
+++ b/documentation/toaster-manual/toaster-manual-start.xml
@@ -1,6 +1,7 @@
 <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
 
 <chapter id='toaster-manual-start'>
 
diff --git a/documentation/toaster-manual/toaster-manual-style.css b/documentation/toaster-manual/toaster-manual-style.css
index 6d6b9fb65d..a7f430df05 100644
--- a/documentation/toaster-manual/toaster-manual-style.css
+++ b/documentation/toaster-manual/toaster-manual-style.css
@@ -1,4 +1,7 @@
 /*
+
+   SPDX-License-Identifier: CC-BY-2.0-UK
+
    Generic XHTML / DocBook XHTML CSS Stylesheet.
 
    Browser wrangling and typographic design by
diff --git a/documentation/toaster-manual/toaster-manual.xml b/documentation/toaster-manual/toaster-manual.xml
index e6d4245231..136b4df964 100755
--- a/documentation/toaster-manual/toaster-manual.xml
+++ b/documentation/toaster-manual/toaster-manual.xml
@@ -1,6 +1,7 @@
 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
 
 <book id='toaster-manual' lang='en'
       xmlns:xi="http://www.w3.org/2003/XInclude"