diff --git a/ChangeLog b/ChangeLog
index 2fad2ec612f..91ceabcc950 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -23,6 +23,7 @@ For users:
 - New: Add hidden option CASHDESK_FORCE_STOCK_ON_BILL
 - New: Can search on part of barcode into POS module.
 - New: Cheques into cheques receipts are ordered by operation date.
+- New: Add hidden option MAIN_DISABLE_PDF_AUTOUPDATE to avoid generating pdf each time data change.
 - Fix: Can use POS module with several concurrent users.
 
 For developers: