diff --git a/nsupdate/settings.py b/nsupdate/settings.py
index 79d43b7..1f6e5be 100644
--- a/nsupdate/settings.py
+++ b/nsupdate/settings.py
@@ -254,7 +254,7 @@ SESSION_COOKIE_PATH = '/'
 SESSION_COOKIE_SECURE = False  # use True here if you have set WE_HAVE_SSL = True
 SESSION_COOKIE_HTTPONLY = True
 SESSION_COOKIE_AGE = 14 * 24 * 3600  # 2 weeks, in seconds
-SESSION_EXPIRE_AT_BROWSER_CLOSE = False
+SESSION_EXPIRE_AT_BROWSER_CLOSE = True  # more safe than False
 
 SESSION_SERIALIZER = 'django.contrib.sessions.serializers.JSONSerializer'