diff --git a/doc/lua.txt b/doc/lua.txt
index 4a5ea43..d513a67 100644
--- a/doc/lua.txt
+++ b/doc/lua.txt
@@ -1,6 +1,6 @@
                    Lua: Architecture and first steps
                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-                             version 1.0
+                             version 1.9
 
                         author: Thierry FOURNIER
                  contact: tfournier at arpalert dot org