diff --git a/notification_email.sh.template b/notification_email.sh.template
index f27d809e74..6f083f1f4a 100755
--- a/notification_email.sh.template
+++ b/notification_email.sh.template
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+cd /home/gonggeng/seahub
+
 export PYTHONPATH=thirdpart
 export DJANGO_SETTINGS_MODULE=settings
 
diff --git a/user_notification.py b/user_notification.py
index 9c51be0ca7..91f3c3eed5 100755
--- a/user_notification.py
+++ b/user_notification.py
@@ -23,8 +23,8 @@ site_name = settings.SITE_NAME
 subject = u'%s：新消息' % site_name
 
 site_base = settings.SITE_BASE
-if site_base[-1] != '/':
-    site_base += '/'
+if site_base[-1] == '/':
+    site_base = site_base[:-1]
 site_root = settings.SITE_ROOT
 if site_root[-1] != '/':
     site_root += '/'