diff --git a/doc/source/conf.py b/doc/source/conf.py
index 1058e9c..c6d68bd 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -58,6 +58,9 @@ pygments_style = 'sphinx'
 # html_theme = '_theme'
 # html_static_path = ['static']
 
+# A list of ignored prefixes for module index sorting.
+modindex_common_prefix = ['valence.']
+
 # Output file base name for HTML help builder.
 htmlhelp_basename = '%sdoc' % project
 
diff --git a/setup.cfg b/setup.cfg
index 71f6ac3..008092b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -23,6 +23,10 @@ classifier =
 packages =
     valence
 
+[pbr]
+autodoc_index_modules = True
+warnerrors = True
+
 [build_sphinx]
 source-dir = doc/source
 build-dir = doc/build
@@ -53,4 +57,4 @@ source-dir = releasenotes/source
 [entry_points]
 console_scripts =
     valence = valence.cmd.api:main
-    db_manager = valence.cmd.db_manager:main
\ No newline at end of file
+    db_manager = valence.cmd.db_manager:main