diff --git a/doc/en/conf.py b/doc/en/conf.py
index cbb8fdb4b..71692e00f 100644
--- a/doc/en/conf.py
+++ b/doc/en/conf.py
@@ -15,7 +15,6 @@
 #
 # The full version, including alpha/beta/rc tags.
 # The short X.Y version.
-import datetime
 import os
 import sys