diff --git a/config/config.sample.php b/config/config.sample.php
index 05fba5777eb..c17799240ce 100644
--- a/config/config.sample.php
+++ b/config/config.sample.php
@@ -1754,6 +1754,15 @@ $CONFIG = [
  */
 'tempdirectory' => '/tmp/nextcloudtemp',
 
+/**
+ * Override where Nextcloud stores update files while updating. Useful in situations
+ * where the defult `datadirectory` is on network disk like NFS, or is otherwise
+ * restricted. Defaults to the value of `datadirectory` if unset.
+ *
+ * The Web server user must have write access to this directory.
+ */
+'updatedirectory' => '',
+
 /**
  * Hashing
  */