diff --git a/auth/ldap/lang/en/auth_ldap.php b/auth/ldap/lang/en/auth_ldap.php
index 647835b510b..467c03b280c 100644
--- a/auth/ldap/lang/en/auth_ldap.php
+++ b/auth/ldap/lang/en/auth_ldap.php
@@ -79,7 +79,7 @@ $string['auth_ldap_passtype'] = 'Specify the format of new or changed passwords
 $string['auth_ldap_passtype_key'] = 'Password format';
 $string['auth_ldap_passwdexpire_settings'] = 'LDAP password expiration settings.';
 $string['auth_ldap_preventpassindb'] = 'Select yes to prevent passwords from being stored in Moodle\'s DB.';
-$string['auth_ldap_preventpassindb_key'] = 'Cache passwords';
+$string['auth_ldap_preventpassindb_key'] = 'Don\'t cache passwords';
 $string['auth_ldap_search_sub'] = 'Search users from subcontexts.';
 $string['auth_ldap_search_sub_key'] = 'Search subcontexts';
 $string['auth_ldap_server_settings'] = 'LDAP server settings';