diff --git a/README.adoc b/README.adoc
index 3f894c3..6876c1b 100644
--- a/README.adoc
+++ b/README.adoc
@@ -12,6 +12,18 @@ Requirements
 In Debian, installing the +python3-urwid+ package will generally satisfy the
 dependencies.
 
+If you want to build the documentation as well, you'll need
+
+* Asciidoctor
+* Apache FOP
+* DocBook XSL-NS stylesheets (the DocBook 5 ones)
+* xsltproc
+
+Development requirements include
+
+* pep8
+* pyflakes3
+
 newfol is generally developed with the latest version of Python 3, but should be
 compatible with earlier versions.  Please file an issue on GitHub if something
 is broken.