diff --git a/product/ERP5/PropertySheet/AccountingPreference.py b/product/ERP5/PropertySheet/AccountingPreference.py
index 992aa0d6dbc06503fbe7645a5867ca46a620b593..76b89f2581d73ec5bf4efbaf9087981faf93fb77 100644
--- a/product/ERP5/PropertySheet/AccountingPreference.py
+++ b/product/ERP5/PropertySheet/AccountingPreference.py
@@ -81,5 +81,6 @@ class AccountingPreference:
       'description' : 'Allow grouping lines with different quantities',
       'type'        : 'boolean',
       'preference'  : 1,
+      'write_permission': 'Manage properties',
       'mode'        : 'w'},
   )