diff --git a/.user.ini b/.user.ini
index 1dfba4acda8..e91cea5508d 100644
--- a/.user.ini
+++ b/.user.ini
@@ -1,7 +1,9 @@
 ; SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
 ; SPDX-FileCopyrightText: 2014-2016 ownCloud, Inc.
 ; SPDX-License-Identifier: AGPL-3.0-only
-mbstring.func_overload=0
+;
+; NOTE: PHP caches this file for 300 seconds by default
+;
 always_populate_raw_post_data=-1
 default_charset='UTF-8'
 output_buffering=0