diff --git a/conf.py b/conf.py
index 02794784..0a356391 100755
--- a/conf.py
+++ b/conf.py
@@ -52,6 +52,12 @@
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
 
+# Fixes "WARNING: Error when parsing function declaration."
+c_id_attributes = ["__sparse_cache"]
+# Not clear why Sphinx thinks some C files are C++
+cpp_id_attributes = c_id_attributes
+# cpp_paren_attributes = ["_ALIAS_OF", "__printf_like"]
+
 # The suffix(es) of source filenames.
 # You can specify multiple suffix as a list of string:
 #
@@ -83,7 +89,7 @@
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+language = 'en'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
@@ -168,13 +174,13 @@
 # as required.
 extlinks = {
     'git-sof-mainline':
-       (SOF_GIT + '/sof/tree/master/%s', ""),
+       (SOF_GIT + '/sof/tree/master/%s', None),
     'git-sof-docs-mainline':
-       (SOF_GIT + '/sof-docs/tree/master/%s', ""),
+       (SOF_GIT + '/sof-docs/tree/master/%s', None),
     'git-sof-kconfig':
-       (SOF_GIT + '/kconfig/tree/master/%s', ""),
+       (SOF_GIT + '/kconfig/tree/master/%s', None),
     'git-alsa':
-    ('https://git.alsa-project.org/?p=%s.git', ""),
+    ('https://git.alsa-project.org/?p=%s.git', None),
 }
 
 # Add any paths that contain custom static files (such as style sheets) here,