diff --git a/admin_manual/configuration_server/config_sample_php_parameters.rst b/admin_manual/configuration_server/config_sample_php_parameters.rst
index f939d4686..56d059e8b 100644
--- a/admin_manual/configuration_server/config_sample_php_parameters.rst
+++ b/admin_manual/configuration_server/config_sample_php_parameters.rst
@@ -97,6 +97,10 @@ you use SQLite.
 
 Default to ``data/`` in the Nextcloud directory.
 
+.. warning:: This parameter should not be changed after finishing the initial
+	installation of Nextcloud. Doing so might lead to side effects and affect 
+	several features.
+
 ::
 
 	'version' => '',