diff --git a/README.md b/README.md
index 34aff43..221b020 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ tasks when installing [Arch Linux](https://www.archlinux.org).
 * util-linux (>= 2.23)
 * POSIX awk
 * bash (>= 4.1)
+* asciidoc (for generating man pages)
 
 ## License