diff --git a/docs/source/conf.py b/docs/source/conf.py
index a7273e0..d4bde43 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -28,12 +28,14 @@ class Mock(MagicMock):
         return MagicMock()
 
 
-MOCK_MODULES = ['osgeo', 'psycopg2', 'psycopg2.sql',
-                'elasticsearch', 'elasticsearch.client']
+MOCK_MODULES = ['osgeo', 'psycopg2', 'psycopg2.sql', 'psycopg2.extras',
+                'elasticsearch', 'elasticsearch.client.indices']
 sys.modules.update((mod_name, Mock()) for mod_name in MOCK_MODULES)
 
-sys.path.insert(0, os.path.abspath('../..'))
+PYGEOAPI_HOME = os.path.abspath('../..')
+sys.path.insert(0, PYGEOAPI_HOME)
 
+os.environ["PYGEOAPI_CONFIG"] = '%s/pygeoapi-config.yml' % PYGEOAPI_HOME
 
 # -- General configuration ------------------------------------------------