diff --git a/admin_manual/configuration_server/config_sample_php_parameters.rst b/admin_manual/configuration_server/config_sample_php_parameters.rst
index f1e70467f..37338addd 100644
--- a/admin_manual/configuration_server/config_sample_php_parameters.rst
+++ b/admin_manual/configuration_server/config_sample_php_parameters.rst
@@ -228,6 +228,18 @@ language" override this setting after they have logged in.
 
 Defaults to ``en``
 
+::
+
+	'force_language' => 'en',
+
+With this setting a language can be forced for all users. If a language is
+forced, the users are also unable to change their language in the personal
+settings. If users shall be unable to change their language, but users have
+different languages, this value can be set to ``true`` instead of a language
+code.
+
+Defaults to ``false``
+
 ::
 
 	'defaultapp' => 'files',