1 files changed, 2 insertions, 0 deletions
diff --git a/chess.el b/chess.el
index 81a9f06..2f451b3 100644
--- a/chess.el
+++ b/chess.el
@@ -139,6 +139,8 @@ available."
       engine)))
 
 (defun chess-create-modules (module-list create-func &rest args)
+  "Create modules from MODULE-LIST with CREATE-FUNC and ARGS.
+If an element of MODULE-LIST is a sublist, treat it as alternatives."
   (let (objects)
     (dolist (module module-list)
       (let (object)