diff --git a/lhc_web/doc/update_db/update_320.sql b/lhc_web/doc/update_db/update_320.sql
new file mode 100644
index 000000000..f42277980
--- /dev/null
+++ b/lhc_web/doc/update_db/update_320.sql
@@ -0,0 +1 @@
+INSERT INTO `lh_chat_config` (`identifier`,`value`,`type`,`explain`,`hidden`) VALUES ('notice_message','','0','','1');
\ No newline at end of file