diff --git a/doc/Extensions/Authentication.md b/doc/Extensions/Authentication.md
index d7c526d36..48ad0e92f 100644
--- a/doc/Extensions/Authentication.md
+++ b/doc/Extensions/Authentication.md
@@ -108,7 +108,7 @@ Config option: `active_directory`
 
 This is similar to LDAP Authentication. Install __php_ldap__ for CentOS/RHEL or __php5-ldap__ for Debian/Ubuntu.
 
-If you have issues with secure LDAP try setting `$config['auth_ad_dont_check_certificates']` to `1`.
+If you have issues with secure LDAP try setting `$config['auth_ad_check_certificates']` to `0`.
 
 ##### Require actual membership of the configured groups
 
@@ -118,7 +118,7 @@ If you set ```$config['auth_ad_require_groupmembership']``` to 1, the authentica
 
 ```
 $config['auth_ad_url'] = "ldaps://your-domain.controll.er";
-$config['auth_ad_dont_check_certificates'] = 1; // or 0
+$config['auth_ad_check_certificates'] = 1; // or 0
 $config['auth_ad_domain'] = "your-domain.com";
 $config['auth_ad_base_dn'] = "dc=your-domain,dc=com";
 $config['auth_ad_groups']['admin']['level'] = 10;