diff --git a/account_mass_reconcile/models/base_reconciliation.py b/account_mass_reconcile/models/base_reconciliation.py
index b8809ce8..5692845b 100644
--- a/account_mass_reconcile/models/base_reconciliation.py
+++ b/account_mass_reconcile/models/base_reconciliation.py
@@ -159,11 +159,10 @@ class MassReconcileBase(models.AbstractModel):
             else:
                 writeoff_account = self.account_lost_id
             line_rs = ml_obj.browse(line_ids)
-            ctx = dict(self._context)
             if self.analytic_account_id:
-                ctx.update(
-                    {'analytic_id': self.analytic_account_id.id})
-            line_rs.with_context(ctx).reconcile(
+                line_rs = line_rs.with_context(
+                        analytic_id=self.analytic_account_id.id)
+            line_rs.reconcile(
                     writeoff_acc_id=writeoff_account,
                     writeoff_journal_id=self.journal_id
                     )