diff --git a/docs/conf_std.py b/docs/conf_std.py
index <HASH>..<HASH> 100644
--- a/docs/conf_std.py
+++ b/docs/conf_std.py
@@ -90,7 +90,7 @@ exclude_patterns = ['_build']
 pygments_style = 'sphinx'
 
 # A list of ignored prefixes for module index sorting.
-#modindex_common_prefix = []
+modindex_common_prefix = ['pycbc.']
 
 
 # -- Options for HTML output ---------------------------------------------------
@@ -130,7 +130,7 @@ html_theme_options = {'collapsiblesidebar':True}
 
 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
 # using the given strftime format.
-#html_last_updated_fmt = '%b %d, %Y'
+html_last_updated_fmt = '%b %d, %Y'
 
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
@@ -150,7 +150,7 @@ html_theme_options = {'collapsiblesidebar':True}
 #html_use_index = True
 
 # If true, the index is split into individual pages for each letter.
-#html_split_index = False
+html_split_index = True
 
 # If true, links to the reST sources are added to the pages.
 #html_show_sourcelink = True
fix module index page to not include pycbc. prefix