diff --git a/README.md b/README.md
index 4ca001d..637fd36 100644
--- a/README.md
+++ b/README.md
@@ -41,3 +41,5 @@ pg_restore -d restoretest /data/odoo_data.dump
 ## Notes
 
 * Connection from PoS Tablet to IoT Box is a direct connection, not via Odoo server!
+* Support for opening the cashbox via network printer has been patched. The IP is hardcoded
+  to 192.168.233.3. See 0c6ecfdd and [#730](https://github.com/it-projects-llc/pos-addons/issues/730]).