--- Makefile.orig	2013-05-17 11:52:14.938544640 +0200                                                   
+++ Makefile	2013-05-17 11:52:47.838800279 +0200
@@ -118,7 +118,7 @@
                                  $(ALLMANPAGES))
 
 doc/%.html: doc/%.texi
-	texi2html -monolithic -number $<
+	texi2html $<
 	mv $(@F) $@
 
 doc/%.pod: doc/%-doc.texi