diff --git a/plugins/dynamix/DiskSettings.page b/plugins/dynamix/DiskSettings.page
index 72d17b58d..f1024bdb0 100644
--- a/plugins/dynamix/DiskSettings.page
+++ b/plugins/dynamix/DiskSettings.page
@@ -121,6 +121,12 @@ Default file system:
 >
 > The default file system type for a single or multi-device cache is always Btrfs.
 
+Shutdown time-out:
+: <input type="text" name="shutdown_timeout" maxlength="10" value="<?=$var['shutdownTimeout']?>" class="narrow">
+
+> When shutting down the server, this defines how long to wait in seconds for *graceful* shutdown before forcing
+> shutdown to continue.
+
 Tunable (poll_attributes):
 : <input type="text" name="poll_attributes" maxlength="10" value="<?=$var['poll_attributes']?>" class="narrow"><?=$var['poll_attributes_status']?>