diff --git a/doc/source/conf.py b/doc/source/conf.py
index a8fe434e..d85b1932 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -10,9 +10,9 @@
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 #
-# import os
-# import sys
-# sys.path.insert(0, os.path.abspath('.'))
+import os
+import sys
+sys.path.insert(0, os.path.abspath('../../'))
 
 
 # -- Project information -----------------------------------------------------