diff --git a/doc/publican/Client.xml b/doc/publican/Client.xml
index 19bf3e9..77449d1 100644
--- a/doc/publican/Client.xml
+++ b/doc/publican/Client.xml
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='utf-8' ?>
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!DOCTYPE appendix PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
   <!ENTITY % BOOK_ENTITIES SYSTEM "Wayland.ent">
   <!ENTITY doxygen SYSTEM "ClientAPI.xml">
 %BOOK_ENTITIES;
diff --git a/doc/publican/Server.xml b/doc/publican/Server.xml
index 2333b1a..df25e78 100644
--- a/doc/publican/Server.xml
+++ b/doc/publican/Server.xml
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='utf-8' ?>
-<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!DOCTYPE appendix PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
   <!ENTITY % BOOK_ENTITIES SYSTEM "Wayland.ent">
   <!ENTITY doxygen SYSTEM "ServerAPI.xml">
 %BOOK_ENTITIES;