diff --git a/README b/README
index 5e60a093..b8181757 100644
--- a/README
+++ b/README
@@ -78,6 +78,7 @@ cdist was tested or is know to run on at least
  * A posix like shell
  * Python (>= 3.2 required)
  * SSH-Client
+ * Asciidoc (for building the manpages)
 
 ### Client ("target host")