diff --git a/doc/htconfig.md b/doc/htconfig.md
index fb257c3dac..90bf78b872 100644
--- a/doc/htconfig.md
+++ b/doc/htconfig.md
@@ -25,6 +25,7 @@ Example: To set the directory value please add this line to your .htconfig.php:
 * **allowed_link_protocols** (Array) - Allowed protocols in links URLs, add at your own risk. http is always allowed.
 * **birthday_input_format** - Default value is "ymd".
 * **block_local_dir** (Boolean) - Blocks the access to the directory of the local users.
+* **dbclean** (Boolean) - Enable the automatic database cleanup process
 * **default_service_class** -
 * **delivery_batch_count** - Number of deliveries per process. Default value is 1. (Disabled when using the worker)
 * **diaspora_test** (Boolean) - For development only. Disables the message transfer.