diff --git a/doc/manuals/Makefile b/doc/manuals/Makefile
deleted file mode 100644
index e809632..0000000
--- a/doc/manuals/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-TOPDIR = ..
-
-ASCIIDOC = osmoggsn-usermanual.adoc
-ASCIIDOC_DEPS = chapters/*.adoc
-include $(TOPDIR)/build/Makefile.asciidoc.inc
-
-VTY_REFERENCE = osmoggsn-vty-reference.xml
-include $(TOPDIR)/build/Makefile.vty-reference.inc
-
-include $(TOPDIR)/build/Makefile.common.inc
diff --git a/doc/manuals/Makefile.am b/doc/manuals/Makefile.am
new file mode 100644
index 0000000..d41ca2c
--- /dev/null
+++ b/doc/manuals/Makefile.am
@@ -0,0 +1,16 @@
+EXTRA_DIST = osmoggsn-usermanual.adoc \
+    osmoggsn-usermanual-docinfo.xml \
+    osmoggsn-vty-reference.xml \
+    chapters \
+    vty
+
+if BUILD_MANUALS
+  ASCIIDOC = osmoggsn-usermanual.adoc
+  ASCIIDOC_DEPS = $(srcdir)/chapters/*.adoc
+  include $(OSMO_GSM_MANUALS_DIR)/build/Makefile.asciidoc.inc
+
+  VTY_REFERENCE = osmoggsn-vty-reference.xml
+  include $(OSMO_GSM_MANUALS_DIR)/build/Makefile.vty-reference.inc
+
+  include $(OSMO_GSM_MANUALS_DIR)/build/Makefile.common.inc
+endif
diff --git a/doc/manuals/osmoggsn-usermanual.adoc b/doc/manuals/osmoggsn-usermanual.adoc
index efa2c8f..9bc3885 100644
--- a/doc/manuals/osmoggsn-usermanual.adoc
+++ b/doc/manuals/osmoggsn-usermanual.adoc
@@ -3,27 +3,27 @@
 Harald Welte <hwelte@sysmocom.de>
 
 
-include::../common/chapters/preface.adoc[]
+include::./common/chapters/preface.adoc[]
 
-include::chapters/overview.adoc[]
+include::{srcdir}/chapters/overview.adoc[]
 
-include::chapters/running.adoc[]
+include::{srcdir}/chapters/running.adoc[]
 
-//include::chapters/control.adoc[]
+//include::{srcdir}/chapters/control.adoc[]
 
-include::../common/chapters/vty.adoc[]
+include::./common/chapters/vty.adoc[]
 
-include::../common/chapters/logging.adoc[]
+include::./common/chapters/logging.adoc[]
 
 
-include::chapters/configuration.adoc[]
+include::{srcdir}/chapters/configuration.adoc[]
 
-include::../common/chapters/control_if.adoc[]
+include::./common/chapters/control_if.adoc[]
 
-include::../common/chapters/port_numbers.adoc[]
+include::./common/chapters/port_numbers.adoc[]
 
-include::../common/chapters/bibliography.adoc[]
+include::./common/chapters/bibliography.adoc[]
 
-include::../common/chapters/glossary.adoc[]
+include::./common/chapters/glossary.adoc[]
 
-include::../common/chapters/gfdl.adoc[]
+include::./common/chapters/gfdl.adoc[]
diff --git a/doc/manuals/osmoggsn-vty-reference.xml b/doc/manuals/osmoggsn-vty-reference.xml
index c9aea03..3ad7e83 100644
--- a/doc/manuals/osmoggsn-vty-reference.xml
+++ b/doc/manuals/osmoggsn-vty-reference.xml
@@ -5,7 +5,7 @@
 -->
 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML 5.0//EN"
 "http://docbook.org/xml/5.0/dtd/docbook.dtd" [
-<!ENTITY chapter-vty      SYSTEM      "../common/chapters/vty.xml" >
+<!ENTITY chapter-vty      SYSTEM      "./common/chapters/vty.xml" >
 <!ENTITY sections-vty     SYSTEM      "generated/docbook_vty.xml"  >
 ]>