diff --git a/doc/conf.py b/doc/conf.py
index 0baee5c8..ec7a129c 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -11,7 +11,7 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-import sys, os
+import sys, os, exceptions
 
 #Mocking uninstalled modules: https://read-the-docs.readthedocs.org/en/latest/faq.html