<?xml version="1.0"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V4.1.2//EN"
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
<!ENTITY at-spi-spi-main SYSTEM "xml/spi_main.xml">
<!ENTITY at-spi-spi-event SYSTEM "xml/spi_event.xml">