diff --git a/odex25_accounting/account_log/models/account_chatter.py b/odex25_accounting/account_log/models/account_chatter.py
index 21794d54c..ba97fa235 100644
--- a/odex25_accounting/account_log/models/account_chatter.py
+++ b/odex25_accounting/account_log/models/account_chatter.py
@@ -180,7 +180,7 @@ class AccountPayment(models.Model):
     @api.model
     def _get_tracked_fields(self):
         fields = self.fields_get()
-        dels = [f for f in fields if f in models.LOG_ACCESS_COLUMNS or f.startswith('_') or f == 'id']
+        dels = [f for f in fields if f in models.LOG_ACCESS_COLUMNS or f.startswith('_') or f == 'id' or f == 'string_to_hash']
         for x in dels:
             del fields[x]
         return set(fields)
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