diff --git a/docs/manual/adding-packages-asciidoc.txt b/docs/manual/adding-packages-asciidoc.txt
index 0c10fd124a..a278d44cc9 100644
--- a/docs/manual/adding-packages-asciidoc.txt
+++ b/docs/manual/adding-packages-asciidoc.txt
@@ -65,6 +65,8 @@ information is (assuming the document name is +foo+) :
 
 * +FOO_DEPENDENCIES+, optional, the list of packages (most probably,
   host-packages) that must be built before building this document.
+  If a hook of your document needs to access the _Kconfig_ structure,
+  you may add +prepare-kconfig+ to the list of dependencies.
 
 There are also additional hooks (see xref:hooks[] for general information
 on hooks), that a document may set to define extra actions to be done at