diff --git a/manual/config/ccnet-conf.md b/manual/config/ccnet-conf.md
index 313e80d4..b647b498 100644
--- a/manual/config/ccnet-conf.md
+++ b/manual/config/ccnet-conf.md
@@ -27,12 +27,3 @@ CA_PATH = /etc/mysql/ca.pem
 ```
 
 When set `use_ssl` to true and `skip_verify` to false, it will check whether the MySQL server certificate is legal through the CA configured in `ca_path`. The `ca_path` is a trusted CA certificate path for signing MySQL server certificates. When `skip_verify` is true, there is no need to add the `ca_path` option. The MySQL server certificate won't be verified at this time.
-
-## Changing name of table 'Group'
-
-There is a table named 'Group' in ccnet database, however, 'Group' is the key word in some of databases, you can configure this table name to avoid conflicts if necessary:
-
-```
-[GROUP]
-TABLE_NAME=new_group_name
-```