diff --git a/extensions/stats/grapher.py b/extensions/stats/grapher.py
index 2dfd5d3e7..ad52da760 100644
--- a/extensions/stats/grapher.py
+++ b/extensions/stats/grapher.py
@@ -3,7 +3,7 @@
 import os
 import time
 import datetime
-#import rrdtool
+import rrdtool
 from django.utils.translation import ugettext as _
 from modoboa.lib import parameters