diff --git a/conf/type/__package_apt/parameter/optional b/conf/type/__package_apt/parameter/optional
index a52167d3..2dae648e 100644
--- a/conf/type/__package_apt/parameter/optional
+++ b/conf/type/__package_apt/parameter/optional
@@ -1,2 +1,3 @@
 name
+preseed
 version
diff --git a/doc/dev/todo/niconext b/doc/dev/todo/niconext
index 107023dd..4751c54a 100644
--- a/doc/dev/todo/niconext
+++ b/doc/dev/todo/niconext
@@ -1 +1,2 @@
-   - Ensure html output of manpages are published on the web
+- add --preseed to __package_apt
+- Ensure html output of manpages are published on the web