diff --git a/osinaweb/osinacore/tasks.py b/osinaweb/osinacore/tasks.py
index 555de82d..fdba8fcd 100644
--- a/osinaweb/osinacore/tasks.py
+++ b/osinaweb/osinacore/tasks.py
@@ -24,8 +24,7 @@ def set_offline():
                     user = staff_profile.user
                     last_connection = Connection.objects.filter(user=user).order_by('-date').first()
                     if last_connection and last_connection.status != 'Offline':
-                        user_last_login = user.last_login
-                        if user_last_login and current_time - user_last_login > timedelta(minutes=5):
+                        if  current_time - last_connection.date > timedelta(minutes=5):
                             Connection.objects.create(
                                 status='Offline',
                                 date=datetime.now(),