diff --git a/doc/artsbuilder/future.docbook b/doc/artsbuilder/future.docbook
index 529cc103..9bffa354 100644
--- a/doc/artsbuilder/future.docbook
+++ b/doc/artsbuilder/future.docbook
@@ -1,9 +1,3 @@
-<!-- <?xml version="1.0" ?>
-<!DOCTYPE chapter PUBLIC "-//KDE//DTD DocBook XML V4.1.2-Based Variant
-V1.1//EN" "dtd/kdex.dtd">
-To validate or process this file as a standalone document, uncomment
-this prolog. Be sure to comment it out again when you are done -->
-
 <chapter id="future-work">
 <title>Future Work</title>