diff --git a/doc/source/index.rst b/doc/source/index.rst
index 14fdd4136..0588a8f97 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -65,6 +65,5 @@ Indices and tables
 ==================
 
 * :ref:`genindex`
-* :ref:`modindex`
 * :ref:`search`
 
diff --git a/setup.cfg b/setup.cfg
index 9ee531c28..052dd95dd 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -29,9 +29,6 @@ source-dir = doc/source
 build-dir = doc/build
 all_files = 1
 
-[pbr]
-autodoc_tree_index_modules = True
-
 [upload_sphinx]
 upload-dir = doc/build/html