diff --git a/config/locales/vi.yml b/config/locales/vi.yml
index cbac74f..bd34206 100644
--- a/config/locales/vi.yml
+++ b/config/locales/vi.yml
@@ -189,7 +189,7 @@ vi:
   general_csv_separator: ','
   general_csv_decimal_separator: '.'
   general_csv_encoding: UTF-8
-  general_pdf_encoding: UTF-8
+  general_pdf_encoding: CP1258
   general_first_day_of_week: '1'
   
   notice_account_updated: Cập nhật tài khoản thành công.