diff --git a/LogEntry.py b/LogEntry.py
index 6cb4d11..7ec80e8 100644
--- a/LogEntry.py
+++ b/LogEntry.py
@@ -26,8 +26,8 @@ class LogEntry(object):
 
     def datetime_string(self):
         x = self.datetime
-        return "%s-%s-%s %s:%s:%s" % (x.year(), x.month(), x.day(),
-                                      x.hour(), x.minute(), x.second())
+        return "%s-%s-%s %s:%s:%s" % (x.year, x.month, x.day,
+                                      x.hour, x.minute, x.second)
 
 
 def get_datetime(datetime_string):