diff --git a/sysadm/index.rst b/sysadm/index.rst
index 1f9b75d..3c05318 100644
--- a/sysadm/index.rst
+++ b/sysadm/index.rst
@@ -1,23 +1,23 @@
 Welcome to the Software Heritage sysadmin documentation
 =======================================================
 
 .. toctree::
    :maxdepth: 2
    :caption: Contents:
 
-  puppet/index
-  network-architecture/index
-  server-architecture/index
-  data-silos/index
-  deployment/index
-  user-management/index
-  life-cycle-management/index
-  mirror-operations/index
-  support-services/index
+   puppet/index
+   network-architecture/index
+   server-architecture/index
+   data-silos/index
+   deployment/index
+   user-management/index
+   life-cycle-management/index
+   mirror-operations/index
+   support-services/index
 
 
 Indices and tables
 ==================
 
 * :ref:`genindex`
 * :ref:`search`