diff --git a/pagure/ui/issues.py b/pagure/ui/issues.py
index 657a102..fab3a89 100644
--- a/pagure/ui/issues.py
+++ b/pagure/ui/issues.py
@@ -15,6 +15,7 @@
 
 import flask
 import os
+import datetime
 from collections import defaultdict
 from math import ceil