diff --git a/doc/manuals/Makefile b/doc/manuals/Makefile
index a83b909..7a1acc0 100644
--- a/doc/manuals/Makefile
+++ b/doc/manuals/Makefile
@@ -1,45 +1,11 @@
-# XSL stylesheets downloaded from http://docbook.sourceforge.net/release/xsl/current/html/
-# Makefile from BitBake/OpenEmbedded manuals
+TOPDIR = ..
 
-EXTRA_DEPS = gen-vty-docbook
-
-topdir = .
-pcu_reference = $(topdir)/osmopcu-vty-reference.xml
-manuals = $(bts_manual) $(pcu_reference)
-# types = pdf txt rtf ps xhtml html man tex texi dvi
-# types = pdf txt
-types = $(docbooktotypes)
-docbooktotypes = pdf
-# htmlcssfile =
-# htmlcss =
-
-TOPDIR := ..
-ASCIIDOCS := osmopcu-usermanual osmopcu-gb
-
+ASCIIDOC = osmopcu-usermanual.adoc osmopcu-gb.adoc
 include $(TOPDIR)/build/Makefile.asciidoc.inc
-include $(TOPDIR)/build/Makefile.inc
-
 osmopcu-gb.pdf: gb/*.adoc gb/*.msc
 osmopcu-usermanual.pdf: chapters/*.adoc
 
-clean:
-	-rm -rf $(cleanfiles)
-	-rm -rf gen-vty-docbook
-	-rm osmopcu-usermanual__*.png
-	-rm osmopcu-usermanual__*.svg
-	-rm osmopcu-usermanual.check
+VTY_REFERENCE = osmopcu-vty-reference.xml
+include $(TOPDIR)/build/Makefile.vty-reference.inc
 
-gen-vty-docbook: FORCE
-	$(call command,xsltproc -o generated/combined1.xml \
-		--stringparam with $(PWD)/../common/vty_additions.xml \
-		$(MERGE_DOC) vty/osmo-pcu_vty_reference.xml, \
-		XSLTPROC,Merging Common VTY)
-	$(call command,xsltproc -o generated/combined2.xml \
-		--stringparam with $(PWD)/vty/osmo-pcu_vty_additions.xml \
-		$(MERGE_DOC) generated/combined1.xml, \
-		XSLTPROC,Merging PCU VTY)
-	$(call command,xsltproc ../vty_reference.xsl generated/combined2.xml > generated/docbook_vty.xml, \
-		XSLTPROC,Converting PCU VTY to DocBook)
-
-
-
+include $(TOPDIR)/build/Makefile.common.inc