diff --git a/source/concept/index.rst b/source/concept/index.rst
index 7aeaa39d79281cc104ba8c98e13fb13ff7a4f197..93ef25640f7c5adf39b05f750b5dbe0b9a5339a2 100644
--- a/source/concept/index.rst
+++ b/source/concept/index.rst
@@ -13,4 +13,5 @@ Documentation Veremes sur les notions théoriques
    :maxdepth: 2
    :glob:
 
-   system/index.rst
\ No newline at end of file
+   system/index.rst
+   poo/index.rst