diff --git a/docs/source/index.rst b/docs/source/index.rst
index 04a296987e871b747ae2601945986ad2fc02a520..8790ea16287ee3311dc57c10ad15192715ff7420 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -13,7 +13,7 @@ the details on :ref:`ASPIS` the project.
 Contents
 --------
 
-.. toctree::
+.. doctree::
 
    CAESAR
    ASPIS